I cant choose the answer for the last question :((

Answer 1

Hello, Dương Trần !
What do you mean?
Please write in more detail, and people will be able to help you.

Answer 2

which question is that?

Answer 3

the last question in " Basic HTML Document Tructure" . there're 4 choice . I try to choose but cant . but I can drag and drop it . I wonder that my mobiphone has problem or the app :((( anyone have ever been in that case ? help me pls

Answer 4

oh I knew ! it is arrange question . My wrong to think that it is multi question . many thanks