Hindustan Petroleum Corporation Limited

Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
A. This steady flow carries with it oxygen, fuel, hormones, other compounds and a host of essential cells.
B. The heart beats about 2.5 billion times over the average lifetime, pushing millions of gallons of blood to every part of the body.
C. When the heart stops, essential functions fail, some almost instantly.
D. It also whisks away the waste products of metabolism.

Select the most appropriate ANTONYM of the highlighted word in the given sentence.
The defendant is accused of attempting to conceal evidence.

Select the option that can substitute the underlined word segment in the given sentence.
Starting a business during an economic crisis is like \underline{\text{engaging in a risky or dangerous activity, often with unpredictable consequences}}.