Arrange the following in correct sequence:

These are the options for the question :Arrange the following in correct sequence:

Following is the sequence of generating geothermal :
(i) It is so hot that when it rises to the earth’s surface, it turns into
steam.
(ii) Groundwater in such areas (where the geothermal gradient is
high) absorbs heat from the rocks and becomes hot.
(iii) This steam is used to drive turbines and generate electricity.
(iv) Geothermal energy exists, because the earth grows
progressively hotter with increasing depth.
a. (iv) – (ii) – (i) – (iii)
b. (ii) – (i) – (iv) – (iii)
c. (i) – (iv) – (iii) – (ii)
d. (iii) – (ii) – (iv) – (i)

The correct answer is -a. (iv) – (ii) – (i) – (iii)