The value of sin238° + sin252° + sin230° - tan245° is equal to:

Answer: Option B

sin²38° + sin²52° + sin²30° - tan²45°
= sin²38° + cos²38° + $${\left(\frac{1}{2}\right)}^2$$ - 1   [Here sin²θ + cos²θ = 1]
= 1 + $$\frac{1}{4}$$ - 1
= $$\frac{1}{4}$$