The nth term of the equation would be:
Tn=an+b
a=constant difference
b= term 0 (term before first term)
Tn=3n-30
A) 126=3n-30
n=52 (valid because it is positive)
B) 461=3n-30
n=163.67 (invalid because it is not a whole number and a position needs to be a whole number)
C) 657=3n-30
n= 229 (valid)
D) 501=3n-30
n= 177 (valid)
Your answer is B