An increase in sort term investments of 450, a decrease in cash deposits of 600 and an increase in creditors of 1,300 will result in:

Select one: a. an increase in working capital of 1,900 b. a decrease in working capital of 1,050 c. a decrease in working capital of 1,900 d. a decrease in working capital of 1,450 e. an increase in working capital of 1,300