Answer:
a. increase the price of the software
Explanation:
If I were the sales manager for a software company and have been informed that the price elasticity of demand for your most popular software is less than 1. In order to increase total revenues from that product, I will increase the price of the software.
The reason for such decision is based on the fact that when the price elasticity of demand of a product is lower than 1, an increase in the price of that product results in an increase in revenue for the seller.
