The Banana Republic's stock of capital at the end of 2017 was $80 billions. The Republic's investment during the year 2018 was $21 billions. The depreciation rate in the Republic was 10%.

1.Depreciation of the capital during the year 2018 was _______

a.$21.0 billions

b.$10.9 billions

c.$8.0 billions

d.$13.0 billions

2. The net investment during the 2018 in the Republic was _______

a.$13.0 billions

b.$21.0 billions

c.$8.0 billions

d.$10.9 billions

3. The stock of capital at the end of 2018 was _________

a.$72.0 billions

b.$93.0 billions

c.$13.0 billions

d.$101.0 billions