Answer: Telegraphic Speech involves phrases with only two words.
Explanation:
The term Telegraphic Speech originates from Telegram uses which was charged by words, the more words you send the more money you pay. In that context people shortened words in a manner that the intent meaning is understood inorder to cut cost; this is similar to speech development in children, a child wants to say 'please bring the book here'; he or she would say' book here'. So this analogy plays out to the shortening of words and so termed Telegraphic Speech.