Economic-The store of value function of money refers to the ability of money to???-thank you?

Question

The store of value function of money refers to the ability of money to

facilitate the exchange of goods and services.

maintain its value over time.

express relative scarcity.

earn interest over time.

increase its value over time.

Answer 1

maintain its value over time

Answer 2

b) maintain its value over time.

It comes from basic definition and word "store of value" - so value should be stored in order to maintain this function of money.