Correct Answer: Feasible

Solution : The correct choice is the first option.

Feasible is an adjective that describes something that is capable of being accomplished, achieved, or carried out successfully. It is often used to express the practicality or possibility of a plan, idea, or project. When something is feasible, it means it can be done under the given circumstances.

The meanings of the other options are as follows:

• Untenable: This adjective is often used in the context of arguments or positions that are indefensible.
• Irrevocable: This adjective refers to something that cannot be revoked, changed, or undone.
• Eligible: This adjective means having the right qualifications or meeting the conditions for a particular purpose.