Table:
text: United States House of Representatives elections, 1960
Alabama
Alabama
District Incumbent Party First_elected Result_ Candidates
Alabama 1 Frank W. Boykin Democratic 1935 Re-elected Frank W. Boykin (D) Unopposed
Alabama 2 George M. Grant Democratic 1938 Re-elected George M. Grant (D) Unopposed
Alabama 3 George W. Andrews Democratic 1944 Re-elected George W. Andrews (D) Unopposed
Alabama 4 Kenneth A. Roberts Democratic 1950 Re-elected Kenneth A. Roberts (D) Unopposed
Alabama 5 Albert Rains Democratic 1944 Re-elected Albert Rains (D) Unopposed
Alabama 6 Armistead I. Selden, Jr. Democratic 1952 Re-elected Armistead I. Selden, Jr. (D) Unopposed

Question: From which district is incumbent Albert Rains in the 1960 United States House of Representatives election, Alabama?

Question: How many candidates represent the district of Kenneth a. Roberts under the United States House of Representatives election, 1960 in Alabama?