Answer: b
Explanation:
First look for the difference between the terms, for example the sequence:
5, 8, 11, 14... has a difference of 3.
This means the sequence follows the 3 times table - i.e. 3n
Now since we need the first term to be 5 we add 2 to our rule to make it work.
So the nth term of this sequence is 3n + 2.