If the real part and imaginary part of complex number (2-bi) I (where B ∈ R) are opposite to each other, then B = () A. 2B. -2C. -1D. 1

If the real part and imaginary part of complex number (2-bi) I (where B ∈ R) are opposite to each other, then B = () A. 2B. -2C. -1D. 1

(2-bi) I = B + 2I