Which of the following statement(s) is(are) INCORRECT with regard to the use of regression analysis to measure foreign exchange exposure? Select all that apply.

a. The regression coefficient a1, estimated by regression analysis, indicates the sensitivity of cash flows to the movement in exchange rates

b. If the regression coefficient a1 is positive and significant, this implies a negative relationship between the change in the currencys value and the firms cash flows.

c. If the regression coefficient a1 is negative and significant, this implies a positive relationship between the change in the currencys value and the firms cash flows.

d. If the intercept a0 is positive and significant, this implies a positive relationship between the change in the currencys value and the firms cash flows.