翻譯我的句子。 (Translate my sentence and fix any errors.) 每週使用一次或兩次。在兩個月內使用。⬅️ This is my sentence

請和謝謝你！（Please and thank you. :)

Which sentence correctly uses a colon to denote a list or enumeration? a. each group will have members fill the following roles: leader, note-taker, and time-keeper. b. our toughest monthly sales goals are in: january, july, and august. c. marketing, distribution, and customer service: are the focus areas for 2017. d. the company will be opening two new offices in: harrisburg and reading.