Each of three objects has a net charge.Objects A and B attract one another.Objects B and C also attract one another, but objects A and C repel one another.Which one of the following table entries is a possible combination of the signs of the net charges on these three objects? 
Definitions:
Average
A statistical measure representing the central or typical value in a set of data, calculated usually as the sum of the values divided by the number of values.
Real Numbers
Real numbers include all the numbers on the number line, encompassing rational and irrational numbers, positive, negative, and zero.
Complex Fraction
A fraction that consists of a fraction within its top or bottom number, or in both.
Simplify
The process of reducing a mathematical expression to its simplest form, by performing operations and combining like terms.
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