Which format option allows you to display the employee information "First name" and "Last name" only once for each employee?

A report shows one row for each language an employee speaks. The employee information "First name" and "Last name" is repeated for each language on each row.

Which format option allows you to display the employee information "First name" and "Last name" only once for each employee?
A . Show Total Row
B. Column Style Settings
C. Sum Function
D. Group Columns

Answer: D