. [12 pts} Multiple choice. Circle your answer. No work or explanation is necessary. {a} For all integers a, b, and c, if a | b and b | c, then a [ c. i. True ii. False [b] For all integers a and b, if a | a, then a E b. i. True ii. False [c] Pr Q E -Q V P i. True ii. False (d) eraya} a P no i. True ii. False [e] A contradiction is a statement that is both true and false. i. True ii. False [f] The sum of mo inatonal numbers is irrational. i. True ii. False