Multiple Choice
A company wants to select one product from a set of 3 possible products.Which of the following ensures that only one product will be selected?
A) XA + XB + XC = 1
B) XA + XB + XC ≤ 1
C) XA + XB + XC ≥ 1
D) XA + XB + XC ≥ 0
E) XA - XB - XC = 1
Correct Answer:

Verified
Correct Answer:
Verified
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