Decide Which of the 5 Properties of a Commutative Group

question 133

Multiple Choice

Decide which of the 5 properties of a commutative group (closure, identity, inverse, associative, commutative) hold for
the given system.
- $$\begin{array} { c | c c c c } ?? & 2 & 8 & 11 & 16 \\ \hline 2 & 8 & 11 & 16 & 2 \\8 & 11 & 16 & 2 & 8 \\11 & 16 & 2 & 8 & 11 \\16 & 2 & 16 & 11 & 8\end{array}$$

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

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