Respuesta :

Answer:

B

Step-by-step explanation:

The square root of 21 will be halfway between 4 and 5. 4.58 ~ 4.6

The square root of 17 will be closer to 4 than 5. 4.12 ~ 4.1

3Pi/2 will beclose to 5 than 4. 4.71 ~ 4.7

4.1, 4.6, 4.7

That is B.