it is given that,
builder club sells bracelet between 50 to 80 bracelets, at 1.50
if they sell 50 bracelets then,
total earning is 50 x 1.50 = 75 
if they sell 80 bracelet then,
 80 x 1.50 = 120 
so, 
the dependent = money raised,
the independent = number of bracelets
the domain is 50 to 80 bracelet,
the range is 75$ to 120 $
thus, the answer is option A