Answer:
A) Provide savings incentives
Step-by-step explanation:
Total national savings equal the total investment component of the gross domestic product of a nation. The only way you can increase investment is by saving more money.
The simplest way (but also ineffective) of increasing savings in an economy is by increasing interest rates. It is ineffective since you increase both interest paid to people that save money and those who borrow money. If you print more money all you are going to do is increase the inflation rate.
A more efficient way of increasing savings would be offering tax incentives for those who save money.