Question: The B46 bus route in Brooklyn, New York City, United States, runs to what shopping center opened in September of 1970?

Context paragraphs:
Q70 (New York City bus): The Q70 Select Bus Service bus route constitutes a public transit line in Queens, New York City, United States, running primarily along the Brooklyn Queens Expressway.  It runs between the 61st Street–Woodside station—with transfers to the New York City Subway and Long Island Rail Road—and Terminals B, C, and D at LaGuardia Airport, with one intermediate stop at the Jackson Heights–Roosevelt Avenue/74th Street subway station.  This route is operated by MTA Regional Bus Operations under the MTA Bus Company brand.

Third and Lexington Avenues Line: The Third and Amsterdam Avenues Line, also known as the Third Avenue Line, is a public transit line in Manhattan, New York City, United States, running from Lower Manhattan to Fort George in Washington Heights.  Originally a streetcar line, it now consists of the M98, M101, M102, and M103 bus routes, operated by the New York City Transit Authority.  The M98 bus route operates on Third Avenue between East 65th Street and East 127th Street, but formerly went to 32nd Street.  The M101-M103 bus route runs southbound on Lexington Avenue north of East 24th Street.

Kings Plaza: Kings Plaza Shopping Center is a shopping center within the Marine Park/Mill Basin section of Brooklyn, New York City, near the Flatlands and Bergen Beach neighborhoods.  Opened in September 1970, it is located at the southeast corner of Flatbush Avenue and Avenue U, just north of Floyd Bennett Field.  The mall is anchored by Macy's, Best Buy, H&M, and Old Navy, and formerly by Sears.

Broadway Line (Midtown Manhattan surface): The Broadway Line is a surface transit line in Manhattan, New York City, United States, running mainly along 42nd Street and Broadway from Murray Hill to Harlem.  Formerly a streetcar line operated by the Third Avenue Railway, it is now the M104 bus route operated by the New York City Transit Authority, a subsidiary of the Metropolitan Transportation Authority.  This bus route no longer runs along the entire route of the former streetcar.

First and Second Avenues Line: The FIrst and Second Avenues Line, also known as the Second Avenue Line, is a bus line in Manhattan, New York City, United States, running mostly along Second Avenue (and northbound on First Avenue since 1951) from Lower Manhattan to East Harlem.  Originally a streetcar line along Second Avenue, it is now the M15 bus route, the second busiest bus route in the city (behind the Bx12) and the busiest in Manhattan, with an annual ridership of over 15.5 million.  MTA Regional Bus Operations, under the New York City Bus and Select Bus Service brands, operates the local out of the Tuskegee Airmen Bus Depot and the SBS is operated from the Mother Clara Hale Bus Depot.  Service is operated exclusively with articulated buses.

Eighth Avenue Line (Manhattan surface): The Eighth Avenue Line is a public transit line in Manhattan, New York City, United States, running mostly along Eighth Avenue from Lower Manhattan to Harlem.  Originally a streetcar line, it is now the M10 bus route and the M20 bus route, operated by the New York City Transit Authority.  The M10 bus now only runs north of 57th Street (near Columbus Circle), and the M20 runs south of 65th Street.  The whole line was a single route, the M10, until 1999 when the M20 was created.

Utica and Reid Avenues Line: The B46 bus route constitutes a public transit corridor in Brooklyn, New York City, United States.  The route runs primarily along Utica Avenue north from the Kings Plaza shopping center through Eastern Brooklyn, with continued service west along Broadway to the Williamsburg Bridge Plaza Bus Terminal.  The corridor was originally served by a streetcar line, known as the Utica and Reid Avenues Line, Utica−Reid Line, Reid−Utica Line, Reid Avenue Line, or Utica Avenue Line until 1951, when the line was replaced by bus service.  The bus route is operated by MTA Regional Bus Operations under the New York City Transit brand.

Q64, QM4 and QM44 buses: The Q64, QM4 and QM44 bus routes constitute a public transit line in Queens, New York City, United States.  The east-to-west Q64 route runs primarily on Jewel Avenue operating between the Forest Hills – 71st Avenue subway station in Forest Hills and 164th Street in Electchester.  The QM4 route is an express bus route running from Midtown Manhattan to Electchester running via Sixth Avenue in Manhattan and Jewel Avenue in Queens.  The QM44 route is an express bus route running from Midtown Manhattan to Electchester running via Third Avenue in Manhattan and Jewel Avenue in Queens.

Sumner and New Lots Avenues Lines: The Sumner Avenue Line and New Lots Avenue Line were two streetcar lines in Brooklyn, New York City, running mainly along Marcus Garvey Boulevard (formerly Sumner Avenue), East 98th Street, and New Lots Avenue between northern Bedford–Stuyvesant and New Lots.  Originally streetcar lines, the two lines were combined as a bus route in 1947.  That bus route became the present B15 Marcus Garvey Boulevard / New Lots Avenue service, operated by MTA New York City Bus' East New York Depot in East New York.  The B15 continues east from New Lots to John F. Kennedy International Airport in Queens.

Q55 (New York City bus): The Richmond Hill Line is a surface transit line on Myrtle Avenue in Queens, New York City, United States.  Once a streetcar line owned by the Brooklyn–Manhattan Transit Corporation, it was replaced on April 26, 1950 by the B55 bus route.  The trolley tracks were not removed until April 1955, when Myrtle Avenue was being repaved.  The bus was renumbered on December 11, 1988 as the Q55 Myrtle Avenue (East) bus route (as opposed to the B54 route on the western portion of Myrtle Avenue), operated by the New York City Transit Authority.

Supporting paragraphs: Utica and Reid Avenues Line Kings Plaza
Answer: Kings Plaza