A student is writing the introduction to an opinion piece about the benefits of a plant-based diet. Which sentence should he include in the introduction to most clearly present his topic?
The food pyramid is a graphic that shows how much of each food group to eat daily.
Around the world, it is customary for people to share meals together.
Many of the medications that people use today are made from products found in nature.
Vegetarians choose to avoid eating meat for health reasons or for moral reasons.

Which phrase in this excerpt from james joyce's "araby is a participial phrase? north richmond street, being blind, was a quiet street except at the hour when the christian brothers' school set the boys free. an uninhabited house of two storeys stood at the blind end, detached from its neighbours in a square ground. the other houses of the street, conscious of decent lives within them, gazed at one another with brown imperturbable faces the former tenant of our house, a priest, had died in the back drawing-room. air, musty from having been long enclosed, hung in all the rooms, and the waste room behind the kitchen was littered with old useless papers. among these i found a few paper-covered books, the pages of which were curled and damp: the abbot, by walter scott, the devout communicant and the memoirs of vidocq. i liked yellow. the wild garden behind the house contained a central apple-tree and a few straggling bushes under one of which i found the late tenant's rusty bicycle-pump. he had been a very charitable priest, in his will he had left all his money to institutions and the furniture of his house to his sister.

Dogs make wonderful pets because they us stay happy and healthy. the topic sentence is "dogs make wonderful pets." , is this correct? i keep doubting myself.

Which line from the story of my life by helen keller is an example of a simile? during the whole trip i did not have one fit of temper, there were so many things to keep my mind and fingers busy. i was like that ship before my education began, only i was without compass or sounding-line, and had no way of knowing how near the harbour was. one day, while i was playing with my new doll, miss sullivan put my big rag doll into my lap also, spelled "d-o-l-l" and tried to make me understand that "d-o-l-l" applied to both. child as i was, i at once felt the tenderness and sympathy which endeared dr. bell to so many hearts, as his wonderful achievements enlist their admiration.