A is a small number of people with complementary skills who are committed to a common purpose, performance goals, and approach for which they hold themselves mutually accountable.

Full question:

A is a small number of people with complementary skills who are committed to a common purpose, set of performance goals, and approach for which they hold themselves mutually accountable.

A. team

B. group

C. sample

D. system

A team is a small number of people with complementary skills who are committed to a common purpose, set of performance goals, and approach for which they hold themselves mutually accountable.

Explanation:

An accumulation of people with diverse experiences and various tasks, who operate collectively on a standard project, assistance, or purpose, with a meshing of roles and shared support.  Organizations use various varieties of teams, any of which are durable and some of which are short.

Teams are utilized to achieve responsibilities that are too big or complicated to be effected by a self or that expect a distinct assortment of skills and expertise.  A fresh product-development team would involve people with consumer experience as fine as planners and designers.

lady gaga

explanation:

lady gaga's real name is stefani joanne angelina germanotta.