Correct Answer - Option 2 : Usha

Sana is 5 years older than Tara.

Tara + 5 = Sana

Riya is 8 years younger to Usha

Riya + 8 = Usha

Usha is 3 years older to Sana

Sana + 3 = Usha

We can order them as follows:

Riya = Tara < Sana < Usha

Therefore, Usha is the eldest.

Hence, “Usha” is the correct answer.