So recently I've learned that the word "fruit" is typically a mass noun, which is quite embarrassing to be honest, as I'll probably have to explain some related grammar to my students. The course outline I'm going to be using features these "grammatical structures":
- What is the most delicious fruit?
- The most delicious fruit is plum.
Is the answer correct? Should it be something like this:
- The most delicious fruit is plums.?
Or is "plum" used in an uncountable sense here, i.e. is it referred to as foodstuff (substance) rather than as an item (single object), in the same way "apple" is used in "There's apple in this sauce"? Is the apparent use of "plum" in the singular without "a/an" in that example grammatically correct?