Which of the following best explains Samantha's results? A. Samantha grows taller through the morning as the Earth rotates.
B. The Earth and the Sun stay in the same position throughout the morning.
O C. The Sun gets closer to the Earth later in the morning.
D. The Sun appears to move higher in the morning sky as the Earth rotates,

i dont know the answe

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.