Here’s a question in the ETS quant book that I’m struggling to even understand whats being asked:

In 1993 the average (arithmetic mean) price per card for all greeting cards sold was $1.25. For which of the following occasions was the number of cards sold in 1993 less than the total number of cards sold that year for occasions other than the ten occasions shown:

A) Christmas

B) Valentine’s Day

C) Easter

D) Mother’s Day

E) Father’s Day

F) Graduation

G) Thanksgiving

H) Halloween

Struggling to parse out what is being asked here. Also this is a "select all that apply question

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