To find X in the equation Stripper = (1/X), we need to solve for X. The correct answer is option 'C', which is Absorber.

Here's an explanation of why Absorber is the correct answer:

1. Understanding the terms:
- Stripper: In chemical engineering, a stripper is a unit operation used to remove a particular component from a mixture. It is typically used to separate volatile components from a liquid stream.
- X: X represents the unknown value that we are trying to find in the equation Stripper = (1/X).

2. Analyzing the equation:
- Stripper = (1/X): This equation suggests that the value of X is the reciprocal of the Stripper.
- Since the Stripper is a unit operation used to remove a component, its value can be considered as a measure of efficiency or effectiveness in removing that component.

3. Evaluating the options:
a) Condenser: A condenser is a unit used to cool and condense vapor into liquid. It is not directly related to the Stripper equation, so it is not the correct answer.
b) Reboiler: A reboiler is a heat exchanger used to provide heat to a distillation column. It is also not directly related to the Stripper equation, so it is not the correct answer.
c) Absorber: An absorber is a unit used to absorb a particular component from a gas stream into a liquid. It is related to the Stripper equation as it involves the removal of a component, making it the correct answer.
d) Sprayer: A sprayer is a device used to spray a liquid or a mist. It is not directly related to the Stripper equation, so it is not the correct answer.

Therefore, the correct answer is option 'C', Absorber, as it is the unit operation that best fits the equation Stripper = (1/X) in terms of removing a component from a mixture.