Step 1: Understanding the Question:
The question asks for the main reason the speaker gives for what prevents people from "going crazy."
Step 2: Analyzing the Passage:
The passage begins with a very direct statement: "It's the simple things in life that keep us from going crazy." The author explicitly states that these simple things contribute more to happiness than "acts of passion and high excitement." The rest of the passage provides examples (the pigeon, the sun, a child's laughter) to support this opening thesis.
Step 3: Final Answer:
The passage directly states that "simple things" are what keep us from going crazy. Therefore, option (D) is the correct answer.
Write any four problems faced by the animals that thrive in forests and oceans: 
Verbal to Non-Verbal:
A stain is an unwanted mark of discolouration on a fabric caused due to contact with another substance which cannot be removed by the normal washing process. Stains can be grouped on the basis of their origin, e.g. tea, coffee and fruits come from vegetable source. Stains from shoe polish, tar, oil paints come under grease stains. Animal stains comprise of stains formed by milk, blood and eggs, whereas marks on your clothes after sitting on an iron bench are those of rust and come under mineral stains. Then there are stains that are formed due to dye, into perspiration which can be categorised under miscellaneous stains. Read the given passage and complete the table. Suggest a suitable title. 
