What Is the Difference in the Acceleration Due to Gravity

What is the difference in the acceleration due to gravity between your head and your feet.Assume your height is 1.80 m. Mass of the Earth: 5.98 * 10²⁴ kg
Radius of the Earth: 6.38 * 10⁶ m

A) Zero,they are exactly the same.
B) 1.57 * 10^-7 m/s²
C) 2.77 * 10^-6 m/s²
D) 5.53 * 10^-6 m/s²
E) 2.77 * 10^-3 m/s²