Letter from the Battlefield – Write a letter consisting of five paragraphs. In this letter you will need to mention a number of things going on in Vietnam, and the middle three paragraphs need to be primarily about what you are witnessing and experiencing in Vietnam. You may address this letter to whomever you like, but most letters from the battlefield were written to someone at home. Since this is a personal letter it can be an informal letter. Just make sure it is 5 paragraphs long.

just say it's your friend did it and you had no idea?

there is 2 main differences, basically which are the users and the market. the other difference is the kind of content

people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.

while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.

hope this !

i believe the answer is d