Solution: Choice A is correct

The given equation can be re-written as

I + 2h – 7 = ih

Or h(2-i)= 7+i

Or h =  (7+i)(2+i) / (2-i)(2+i)          

(by taking complex conjugate of the denominator)

Or h = (15 + 5i) / 5

Or h = 3 + i