To get the number of moles, you need to use this equation:
n = m/M
where n is the number of moles, m is the mass and M is the molar mass of Iron.
Given:
m = 5227 g
M = 55.8 g/mol (from the periodic table)
Therefore
n = 5227 g/55.8 g/mol
n = 93.7
The first option is closer to 93.7 so the answer is the first option.
