How resources are used is determined by people's . a. choices b. retail c. costs d. regulations

The correct answer is A.

The whole economic science is based on the fact that resources are scarce, and on how economic agent (households, business and public sector) need to decide how to allocate them to produce goods and services that will be used to satisfy their needs and desires. Allocations are determined by agent's choices, who interact in the markets, aiming to obtain the greatest benefit for themselves.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d