Another poorly worded quiz choice: "The query in a $match stage can be entirely covered by an index"

The statement “The query in a $match stage can be entirely covered by an index” can be interpreted as:
“The query in a $match stage can always be entirely covered by an index” (false)
“Sometimes the query in a $match stage can be entirely covered by an index” (true)
“The query in a $match stage can never be entirely covered by an index” (false)

Please consider improving the quiz.

@RalphTamlyn

Same answer as to your previous post.