Correct Option: B

The given circuit:

Z_eq = 10 + 20 || jX_L
where X_L = 2πf L = 2π × 50 × 0·1 = 31·42Ω
Now,

Zeq = 10 +	20 × j (31·42)
	20 + j31·42

= 10 + 16·87 32·48°
or
Z_eq = 24·23 × j 9·06
or
Z_eq = 25·87 20·5°