The correct option is this: WRITING IS DIFFICULT BECAUSE SO MANY SKILLS ARE INVOLVED.
A topic sentence refers to the sentence which expresses the main idea of the paragraph in which it occurs. The topic sentence is usually the opening sentence in the paragraph; the other sentences in the paragraph just serve to support the topic sentence.
Did you try looking it up on the internet?
The correct answer is References
Answer:
Hi
Explanation:
I cannot join meets, but i can if u make a z oo m :)