Answer:
Review.
Explanation:
Review tab <u>is the ribbon that contains the tabs to check spelling and grammatical errors, add comments tab, etc. In this ribbon, other options available are Thesaurus, word count, track changes, smart lookup, language translation, etc</u>.
The <u>spelling and grammar</u> option is available to check spellings in the document and to rectify grammatical errors in the sentences.
So, the correct answer is Review Tab.