Which word is correctly used in blank #3?

there two apartments in this building for sale which going to look at if we can only remember they're located.

a. where
b. were
c. we're

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

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