If t is a prime number, and x is a factor of 12, then t/x could be all of the following except

All factors of 12 are {-12, -6, -4, -3, -2, -1, 1, 2, 3, 4, 6, 12}, so x is one of these numbers.

t is a prime, so t∈{2, 3, 5, 7, 11, 13, 17, 19, 23}

A) t/x   cannot be 1/12, because 1 is not a prime.  NOT POSSIBLE

B) 1/4 = 3/12 3 is a prime and 12 is a factor of 12.  POSSIBLE

C) 1/2= 3/6  3 is a prime and 6 is a factor of 12.  POSSIBLE

D) 1 = 2/2 2 is a prime and 2 is a factor of 12.  POSSIBLE

E) 2 = 2/1  2 is a prime and 1 is a factor of 12. POSSIBLE

A

Understanding what? lol