Answer
a) All rabbits hop.
b) All animals are hopping rabbits.
c) There exists an animal that, if it is a rabbit, then it hops.
d) Some rabbits hop.
Work Step by Step
In predicate logic,
$\forall$ means that the predicate applies to everyone in the domain,
$\exists$ means that the predicate applies to at least one person in the domain, and
$\neg$ means to negate what follows.
Keeping this in mind, we formulate each of the sentences based upon the given formulas and the order in which the symbols appear.
