Which of the following would indicate a company is using conservative accounting policies?

Imagine a fictional derivative that pays $100 on Christmas Day, but only if that day is a Sunday. Prior to introduction of this imaginary derivative, it was impossible to achieve this specific payoff. The new fictional derivative has:

An options investor longs one index put option on the Standard & Poor's 100 Index (S&P100). The put has the following characteristics:
Type of option: put option Underlying asset: S&P100 Exercise price: 640 Premium: 0.31 Expiration date:
October
The current price of the S&P100 is 787.77. This long put option is:

A current account surplus reflects:

An investor wants to buy a stock which is trading at $22 now. The investor doesn't want to pay more than $20 for the stock, the investor can place a ______.