Question Discussion & Solution

The correct answer is caffeine.

Caffeine is the main active constituent of tea and coffee.
Additional Information

• Caffeine works by stimulating the central nervous system (CNS), heart, muscles, and the centres that control blood pressure.
  • Caffeine can raise blood pressure, but might not have this effect on people who use it all the time.
  • Caffeine can also act like a “water pill” that increases urine flow.
• Nicotine works by stimulating our nervous system to release specific chemical messengers (hormones and neurotransmitters) that affect different parts of our brain and body.
  • One hormone that nicotine affects is epinephrine, also known as adrenaline.
• Chlorophyll is a green pigment found in plants.
  • Plants use chlorophyll and light to make food.
  • People sometimes use chlorophyll as medicine.
  • Common sources of chlorophyll used for medicine include alfalfa, algae, and silkworm droppings.

The correct answer is All of the Above.

 Key Points

• Decision making structures require that the programmer specifies one or more conditions to be evaluated or tested by the program.
• It also involves a statement or statements to be executed if the condition is determined to be true, and optionally, other statements to be executed if the condition is determined to be false.
• C programming language provides the following types of decision-making statements.
• if...else statement
  • An if statement can be followed by an optional else statement, which executes when the Boolean expression is false.
• switch statement
  • A switch statement allows a variable to be tested for equality against a list of values.
• C goto
  • The goto statement in C/C++ also referred to as the unconditional jump statement can be used to jump from one point to another within a function.

 Additional Information

• C break:
  • This loop control statement is used to terminate the loop.
  • As soon as the break statement is encountered from within a loop, the loop iterations stop there, and control returns from the loop immediately to the first statement after the loop.

The pattern here is as follows:

Hence, RENT is the correct answer. 

Foot, Mile and Light year are unit of Length except Distance.

The pattern followed here is:

Hence, “XRW” is the correct answer.