An investor sells a June $2018$ call of Apple stock with a strike price of USD $45$ at a premium of USD $3$ and buys a June $2018$ call of Apple stock with a strike price of USD $40$ at a premium of USD $5.$ What is the name of his strategy and the maximum profit and loss the investor could incur

Question $7$Select one:

a$.$

Bear spread, maximum loss USD$2,$ maximum profit unlimited

b$.$

Bear spread, maximum loss USD$2,$ maximum profit USD $3$

c$.$

Bull spread, maximum loss unlimited, maximum profit USD $3$

d$.$

Bull spread, maximum loss USD$2,$ maximum profit USD $3$