Determine the domain and range of the relation. State whether the relation is a function or not a function. 
A. domain: {5, 7, 9, 11}
range: {20, 28, 36, 44}
function
B. domain:{20, 28, 36, 44}
range: {5, 7, 9, 11}
function
C. domain:{20, 28, 36, 44}
range: {5, 7, 9, 11}
not a function
D. domain: {5, 7, 9, 11}
range: {20, 28, 36, 44}
not a function
Answer: A
Mathematics
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