Argument is also known as a Claim to persuade a reader or buyer!!
The flow is like the fluency in an essay, so it's the arrangements and transition words to allow it to be told smoothly.
Answer:<span>b. the use of transition words between supporting paragraphs</span>
When Harry opens his blanket, Ginny notices the holes spell something out: “Dad. Help. Godric’s Hollow. 31/10/81.” Harry then realizes that Albus has sent him a message telling where he is in time.
