Lloyd normally works 7.5 hours per day and earns $3.50 per hour. For each hour he works in excess of 7.5 hours on a given day, he is paid 1.5 times his regular rate. If Lloyd works 10.5 hours on a given day, how much does he earn for that day? Choose the correct option:
A) $ 33.75
B) $ 42.00
C) $ 51.75
D) $ 54.00
E) $ 70.00

Rationale: "daily working hour * regular rate + overtime * increased rate 7.5 * 3.5 + 3 * 3.5 * 1.5 = 42 answer b"
Answer: B