Find the First Six Terms of the Sequence $$a _ { 1 } = 7 , a _ { 2 } = 5 ; \text { for } n \geq 3 , a _ { n } = a _ { n - 1 } - a _ { n - 2 }$$

Multiple Choice

Find the first six terms of the sequence.
- $$a _ { 1 } = 7 , a _ { 2 } = 5 ; \text { for } n \geq 3 , a _ { n } = a _ { n - 1 } - a _ { n - 2 }$$

A) $7,5,3,1 , - 1 , - 3$
B) $7,5,2 , - 5 , - 1,4$
C) $7,5,12,17,26,43$
D) $7,5 , - 2 , - 7 , - 5,2$