Consider a situation where two gas stations located across the street from each other are charging different prices. the exxon gas station is charging 50 cents more per gallon of each type of gasoline than the shell gas station. the equilibrium can be restored if: choose the correct answer from the following choices, and then select the submit answer button. a. the exxon gas station reduces the prices. b. the shell gas station reduces the prices. c. the exxon gas station increases the prices. d. both stations reduce their prices by 50 cents per gallon.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.