For every integer m , m² = 5k , or m² = 5k + 1 , or m² equiv 5 pmod5 for some integer k :
a) This statement implies that the square of any integer can be represented in one of these forms.
b) The expression m² = 5k indicates that m² is divisible by 5.
c) The statement suggests that for any integer m , its square has a remainder of either 0, 1, or 4 when divided by 5.
d) This expression encompasses all possible cases of squares of integers in terms of their remainders when divided by 5.