Read the following paragraph and determine if the hypothesis is true:

Kelvin Mitchell Korver (born February 21, 1949) is a former American football defensive tackle who played three seasons with the Oakland Raiders of the National Football League (NFL). He was drafted by the Raiders in the second round of the 1972 NFL Draft. He first enrolled at Texas A&M University before transferring to Northwestern College. Korver attended Irving High School in Irving, Texas.

Available options: -- Yes. -- It's impossible to say. -- No.
Hypothesis: Kelvin Michael Korver started off playing on the offensive line.
It's impossible to say