Question 1 of 10
Which statement describes a controlled experiment?
O A. It includes only an experimental group.
B. It includes a control group and an experimental group.
gontrol
C. It includes only a control group.
O D. It includes more than one control group.

Respuesta :

Answer:

B. it includes a control group and an experimental group.

it’s b - in includes a controlled group and an experimental group