The sentence that is correctly punctuated is "On our way to the beach, we had to stop and buy sunscreen." Option A is correct.
Punctuation is utilized to create sense, clarity and stress in sentences. The most common punctuation marks in English are: capital letters and full stops, question marks, commas, colons and semi-colons, exclamation marks and quotation marks.
Punctuation consists of both rules and conventions.
For instance, we use commas to separate a list of similar words or phrases,