Correct Option: C

Unit’s digit in the expansion of (22)²³ = Unit’s digit in the expansion of (2)²³
2¹ = 2
2² = 4
2³ = 8
2⁴ = 16
2⁵ = 32
Now As we know that,
Unit place of 2¹ = 2
Unit place of 2² = 4
Unit place of 2³ = 8
Unit place of 2⁴ = 6
Unit place of 2⁵ = 2
i.e. 2 repeats itself after the index 4.
On dividing 23 by 4, remainder = 3
∴  Unit’s digit in (2)²³ = Unit’s digit in (2)³ = 8