Two statements are given, one is labelled as Assertion (A) and the other as Reason (R):
Assertion (A): Unequal access to Social resources is called Social inequality.
Reason (R):  Some social inequality reflects innate differences between individual.

Both (A) and (R) are true and (R) is not the correct explanation for (A)

The correct answer is Option 2: Both (A) and (R) are true and (R) is not the correct explanation for (A)

Assertion (A): Unequal access to Social resources is called Social inequality. True because social inequality refers to unequal access to resources, opportunities, and privileges in society. 
Reason (R):  Some social inequality reflects innate differences between individual. True as for example their varying abilities and efforts. These differences can lead to different outcomes in terms of status or wealth.

However, (R) is not the correct explanation of (A). Social inequality is mainly a structural feature of society, arising from systems like class, caste, gender, etc., which determine access to resources.
The reason talks about innate differences, but these do not explain why society distributes resources unequally. Even if individuals differ naturally, inequality becomes “social inequality” only when society institutionalises and structures these differences into unequal opportunities.