Answer:
C. incentive
Step-by-step explanation:
An incentive is something that encourages people and organizations to behave or act in a particular way. It makes people work harder. Governments give incentives to the private sector to influence their decisions. Incentives from the government include grants, infrastructure assistance, low- interest financing, free land, or tax rebates.
A tax rebate to companies involved in energy research and renewable energy production is encouraging development, innovation, and inventions in that sector. A tax rebate or tax refund make the research less costly. It is the government's way of showing support to the companies