Use sigma notation to represent the sum of the first seven terms of the following sequence: −4, −6, −8, …

A: the summation from n equals one to 7 of quantity negative 2 minus 2 times n

B: the summation from n equals one to 7 of quantity negative 4 plus 2 times n

C: the summation from n equals one to 7 of quantity negative 2 minus 4 times n

D: the summation from n equals one to 7 of quantity negative 2 plus 2 times n

This is FLVS exam... help ASAP.

A: the summation from n equals one to 7 of quantity negative 2 minus 2 times n

B: the summation from n equals one to 7 of quantity negative 4 plus 2 times n

C: the summation from n equals one to 7 of quantity negative 2 minus 4 times n

D: the summation from n equals one to 7 of quantity negative 2 plus 2 times n

This is FLVS exam... help ASAP.