Which sentence correctly combines these two sentences into one with a compound predicate? my father fixed the dryer. my father replaced a light bulb. 
a.my father replaced a light bulb and the dryer. 
b.my father fixed the dryer and replaced a light bulb. 
c.my father fixed the dryer, and my father replaced a light bulb. 
d.my father fixed the dryer. later he replaced a light bulb.