The mass of earth is about 5.97 x 10²⁴kilograms and the mass of pluto is about 1.3 x 10²² kilograms. what is the difference in the mass of earth and pluto

a. 5.983* 10²⁴
b. 7.27* 10²⁴
c. 5.957* 10²⁴
d. 4.67* 10²⁴