Answer :
Since, the options have not been given the question is incomplete. The complete question is as follows:
Indicate which syllable receives emphasis when pronounced. optometry
a. op
b. tom
c. e
d. try
Answer: b. tom
Explanation:
A syllable can be defined as the unit of pronunciation, that have one vowel sound, that is with or without surrounding consonants. It may have a whole or part of the word.
In the given word, optometry, tom is the syllable and it receives the emphasis when pronounced because of the presence of vowel "o" increasing the weight-age over the consonants t and m on pronunciation.