What is a real estate investment group?
a. a collection of investors who pool their resources in order to purchase and manage property for a profit.
b. an investment trust which uses investors’ money to purchase property, which it then manages in the investors’ stead.
c. a category of real estate, such as “houses” or “apartment buildings.”
d. a set of several properties purchased all at once. select the best answer from the choices provided a b c d?

The answer is a: a collection of investors who pool their resources in order to purchase and manage property for a profit.

Explanation:  

Real estate refers to land and building on it. It also includes all movable and immovable properties.

A real estate investment group refers to an organization that constructs or buys properties and sells to investors as rental properties.  The group receives a part or share of the investors' monthly rent proceeds as an exchange for finding tenants and handling maintenance.