2.A

3.B

4.(ithink its)D

5.C

6.D

7.B

8.B

9.C

Hopes its Help

2. a

3. b

4. d (wala namang cylinder kaya siguro yong letter d kahit walang picture)

5. c

6. d

7. d ( it doesn't make sense if you choose the other letters)

8. b

9. c

Please respect my answer and opinion.