A salesperson starts at the office and travels to 5 customers along a road. The positive numbers stand for going East. The negative numbers stand for going West. Which expression gives the total number of miles she travels to see these 5 customers?
a.|5+8+2 1/2+6 1/4+-3/4|
b.5-8+2 1/2-6 1/4-3/4
c.|5|+|8|+|2 1/2|+|6 1/4|+|3/4|
d.|(5)+(8)+(2 1/2)+(-6 1/4)+(-3/4)|
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