The art club is selling their handmade jewelry to raise money for new paints and brushes. earrings were sold for $6 a pair and necklaces were sold for $12.50 each. they sold a total of 30 items and made $264.50.

which system of equations best represents the situation above?

note: in all of the choices below, e represents money earned, p represents price, and n represents number of items sold.

a
earrings: e=6(30-n)
necklaces: 264.50-e=12.50*n

b
earrings: e=12.50(30-n)
necklaces: 264.50-e=6*n

c
earrings: e=6(n-30)
necklaces: e-264.50=12.50*n

d
earrings: e=30-n
necklaces: 264.50-e=n