I need help with this one

Answer:
B. -1
Step-by-step explanation:
it is plainly visible.
the dot is one unit to the left (x- or Real-axis), which is -1.
and it is 3 units down (y- or Imaginary-axis), which is -3.
the number is therefore -3i - 1
the question was only for the real part (without any "impact" by an "i"), which again is -1.