'n 8 11. Net exports is a positive number when: O a. A nation's exports of goods and services are greater than its imports. O b. A nation's imports of goods and services are greater than its exports....

these multiple choice Questions from MACROECONOMICS Course.
I need the final answer,please.

Extracted text: 'n 8 11. Net exports is a positive number when: O a. A nation's exports of goods and services are greater than its imports. O b. A nation's imports of goods and services are greater than its exports. O c.A nation's imports of goods and services rise. O d. A nation's imports of goods and services fall. 47. If the MPC is .8 and disposable income is $200, then: O a. saving will be S20. O b. saving will be $30 Oc. consumption will be $160. O d. consumption and saving cannot be determined from the information given