Answer:
A) $1,000 gain
Explanation:
When a client buys a straddle, he is purchasing a call and a put option on the same stock with the same strike price and expiration date.
this client bought 5 ABC Jan 30 calls and 5 ABC Jan 30 puts:
each contract was worth $700 (= $3,500 / 5 contracts)
If the price of the stock fall below $30, the call option will not be taken, but the put option will be enforced. Since the value of the stock is $21, this means that the put option resulted in a $900 profit (= ($30 - $21) x 100).
The client paid $700 for each option, therefore his profit per option = $900 - $700 = $200
His total profit = $200 x 5 options = $1,000