The answer is D! Nobody is mentioned but it is clearly talking to somebody so the subject or person is implied!
By allowing yourself to go back and re-do or reword something you may have said in it.
Hoped this help:)
Answer: the entire url placed inside
Explanation: you need to have the entire url because then viewers will know where to go next time. once you paste the url, the viewer can click the website you have linked.
Answer:
You have the question and you have the answer, what more do you want?