Answer :
b) two
There are two morphemes in the word "bats". The word "bats" consist of two morphemes that directly contribute to the meaning of the word as illustrated below;
bat-s
the bat- is the root morpheme of the word which refers to the animal while the -s shows that there are multiple bats in question.
Morphemes are used differently for different purposes as we have illustrated in the word "bats". There are many different types of morphemes that perform the different functions in the words.
The root morpheme is the main part that remains the same before and after all the modifications have been made to the word to change its meaning. The root morpheme holds the basic meaning of the word.
Learn more about morphemes at; https://brainly.com/question/943027
#SPJ4