Assertion (A) : Basalt is a fine grained and dark coloured

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Assertion (A) : Basalt is a fine grained and dark coloured igneous rock which is formed below the earth's surface.
Reason (R) : THe rate of cooling and solidification of magma inside the earth is very slow
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1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not a correct explanation of (A)
3. (A) is true but (R) is false
4. (A) is false but (R) is true

Correct Option: C

NA