I think this is the approach for this question.
the first statement is the correct answer for this question.
$\text{"Every mother loves her children.}$"
Rewrite The statement as,
$\text{"For every lady in this world, if a lady is a mother then she loves her children."}$
Now we introduce variable $x$,
$\text{"For every lady x in This world, if lady x is a mother then x loves her children."}$
Domain: All ladies in this world.
$L(x)\to \text{ x loves her children.}$
$M(x)\to \text{x is mother.}$
$\forall _{x} \big(M(x)\to L(x)\big)$
We use, $\forall_{x}\big(M(x)\to L(x)\big)$ then it means that
$\text{"All ladies are mother and loves their children".}$