Find the Domain and Range of the Function Represented in the Graph

Short Answer

Find the domain and range of the function represented in the graph.
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A) Domain: $[ - \pi , 2 \pi ]$ Range: [-3,3]
B) Domain: $[ 0,2 \pi ]$ Range: [0,3]
C) Domain: $[ \pi , 2 \pi ]$ Range: [-4,2]
D) Domain: [-3,3] ; Range: $[ - \pi , 2 \pi ]$