Which of the following options would all cause a deterioration in the capital account [ K = (GB investment in US) (US investment in GB) ] ?

a. A decrease in i^$ , an increase in i , a decrease in e, and an increase in e^exp

b. An increase in i^$ , an increase in i , an increase in e, and an increase in e^exp

c. A decrease in i^$ , an increase in i , an increase in e, and a decrease in e^exp

d. An increase in i^$ , a decrease in i , an increase in e, and a decrease in e^exp

e. None of the above.

Explain with graphs and written explanation