Buy a british pound apr 135 call @140.37, contract size 10000 bp, what the total cost for call opt?

an investor buys the british pound apr. 135 call @750 when the pound is at 140.37 the contract size is 10,000 british pounds, whats the investors total cost for the call option?

$135.00
$140.37
$537.00
$750.00