Answer:
The investor earned $3 per share or $300 in total.
Explanation:
Investor's basis per share = $50 (purchase price)
Investor received $8 per share for selling the call option, and then he sold the stocks ate $45 per share.
investor's gain/loss = total revenue per share - cost basis = ($8 + $45) - $50 = $53 - $50 = $3 per share
since the investor purchased 100, shares, total profit = 100 x $3 = $300