当承包单位提出的工程延期要求符合( )的规定条件时，项目监理机构应予以受理。

A．委托监理合同

B．监理规划

C．施工合同

D．监理实施细则

Shigeo Kishiro recently purchased an American put option and Lendon Grey recently wrote an American call option on the same underlying stock, Tackel Sports (currently trading at $40 per share). Kishiro paid $2.75 for an exercise price of $38.00 and Grey received $3.75 for a strike price of $42. Assume that there are no transaction costs to exercise. At a stock price of $43:()

A. if Grey exercises, he will have gained a total of $4.75. 

B. the intrinsic put value is $0 and the put is at-the-money. 

C. the intrinsic call value is $1.