The best way is to answer the post underneath as here.
Top posting means putting the answer first.
With a post the length of yours it really makes little difference, but some posts are quite long, especially when there is an original, then an answer, then a further comment. If people follow Netiquette correctly they will delete all the earlier posts except enough so you can see what they are replying to, and then answer thereafter. There are three reasons I do not like top posting. First, top posters tend never to snip, never to shorten that to which they reply. So people whose download time costs money are wasting money downloading enormous lengths of stuff they have already read.