A query may include a ___________ that specifies the fields from the matching documents to return.
A. selection
B. projection
C. union
D. None of the mentioned
Answer:A
A query may include a ___________ that specifies the fields from the matching documents to return.
A. selection B. projection C. union D. None of the mentioned
Explanation:Queries specify criteria, or conditions, that identify the documents that MongoDB returns to the clients. 2. Point out the correct statement :