How do paragraphs 19-20 contribute to the development of ideas in the text? question 4 options: a they emphasize how little is truly known about how much energy people use and what they use it for. b they stress how complicated it is to get people who use a lot of energy to switch to energy-efficient products. c they show how understanding people and their energy-usage will lead to better energy-saving methods. d they support the claim that watching television is the biggest waste of energy in most households.

Which two lines in this sonnet use symbolism to describe old age? sonnet 2 by william shakespeare when forty winters shall besiege thy brow, and dig deep trenches in thy beauty's field, thy youth's proud livery so gazed on now, will be a totter'd weed of small worth held: then being asked, where all thy beauty lies, where all the treasure of thy lusty days; to say, within thine own deep sunken eyes, were an all-eating shame, and thriftless praise. how much more praise deserv'd thy beauty's use, if thou couldst answer 'this fair child of mine shall sum my count, and make my old excuse,' proving his beauty by succession thine! this were to be new made when thou art old, and see thy blood warm when thou feel'st it cold.