Which one of the following should be added to the soil to make it suitable for the plant growth?

Q. The sample of soil from a particular place was tested for its pH value. It came out to be 5. Which one of the following should be added to the soil to make it suitable for the plant growth?

i. Calcium chloride

ii. Calcium Hydroxide

iii. Calcium oxide

Choose the correct option:

1. Both (i) and (ii)
2. Both (ii) and (iii)
3. Only (i)
4. Only (iii)

Answer: Both (ii) and (iii)