An accountant reviews a business's utility bills over the past year.
$250-
$200-
$150
$100-
$50-
$0
Gas & Electric Bills
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
A. Electric; $220 and $75
B. Electric; $210 and $20
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C. Gas; $220 and $75
D. Gas; $210 and $20
Which utility varied the most throughout the year, and approximately what were the highest and
lowest levels?
Key
Gas
Electric