In the following question, two statements are given followed by two conclusions (I) and (II). You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions, if any, follow from the given statements. Indicate your answer.

Statements: Coal is an inexhaustible source of energy and can convert it into electricity. It has been done in this field the survey shows that there is a vast potential for developing coal as an alternative source of energy.

Conclusions:

I. Energy by coal is a comparatively new emerging field on earth.

II. The energy crisis can be dealt with by exploring more and more in the field of aerogeneration. 

Given statements: Coal is an inexhaustible source of energy and can convert it into electricity. It has been done in this field the survey shows that there is a vast potential for developing coal as an alternative source of energy.

Conclusions:

I. Energy by coal is a comparatively new emerging field on earth → Follow

The statement says 'It has been done in this field', implying it has already started. It also talk about 'vast potential', which suggest more is yet to be done. The use of the word 'developing' suggests it's still in the growth phase i.e. emerging filed.

II. The energy crisis can be dealt with by exploring more and more in the field of aerogeneration → Follow

As the statement suggest discusses solving the energy problem through alternative energy (coal). Aerogeneration is also an alternative energy, so this is a logical extension.

Thus, Both conclusion I and II follow.

Hence, "Option 4" is the correct answer.