Question: When should you use the Boolean operator NOT? a . When you want to be sure to find sources with both keywords b . When

When should you use the Boolean operator "NOT?"
a. When you want to be sure to find sources with both keywords
b. When you want to expand your search results to find sources with either keyword
c. When you want to restrict your search by eliminating sources with a specific keyword
d. None of the choices
When should you use the Boolean operator "NOT?" a. When you

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