Decide Which of the 5 Properties of a Commutative Group

Multiple Choice

Decide which of the 5 properties of a commutative group (closure, identity, inverse, associative, commutative) hold for
the given system.
- $$\begin{array} { l | l l l } ? & \wedge & £ & \Phi \\\hline \wedge & \wedge & £ & \Phi \\£ & £ & \wedge & \Phi \\\Phi & \Phi & £ & \wedge\end{array}$$

A) Closure, identity, inverse, and associative only
B) Closure, identity, and inverse only
C) All of them
D) Closure only