please make answer neat & clearly typed answer is better

A stock has an expected retum of 14% based on its performance. Under the APT. given its risk exposure, the fair expected return is 18%. What would an arbitrageur trade in this situation? a. Buy the stock as price is too low, Buying increases price, reducing return. 6. Buy the stock as price is too low, Buying increases price, increasing return. 0. De nothing - without risk free rate cannet tell d. Short the stock as the price is too high. Selling reduces price, increasing return