Given below are two statements, one is labeled as 
Assertion (A) and the other as Reason (R)
Assertion (A): Maximum number of the species of butterflies are found in tropical countries.
Reason (R): Butterflies can not tolerate low temperatures.
Select the correct answer using the codes given below:

1. A.Both (A) and (R) are true and (R) is the correct explanation of (A)
2. B.Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. C.(A) is true but (R) is flase
4. D.(A) is false but (R) is true