Acceptance must be absolute and unqualified because a qualified and conditional acceptance will amount to counter offer and a counter offer is a rejection of original offer

Explanation:

The acceptance of an offer is a crucial element in the formation of a contract. It is the indication by the offeree that they agree to the terms and conditions set forth in the offer. The acceptance can be classified into different categories based on certain conditions and qualifications. In this case, the correct answer is option 'A', which states that the acceptance may be absolute and unqualified.

Absolute and unqualified acceptance:
- Absolute acceptance refers to a situation where the offeree agrees to all the terms and conditions of the offer without any modifications or conditions.
- Unqualified acceptance means that the offeree accepts the offer as it is, without any changes or additions.

Other options:
Let's take a look at the other options provided and why they are incorrect:

b) Absolute and qualified acceptance:
- Absolute acceptance means that the offeree agrees to all the terms and conditions of the offer without any modifications or conditions.
- Qualified acceptance refers to a situation where the offeree accepts the offer with certain modifications or conditions.
- These two terms contradict each other, so this option is incorrect.

c) Conditional and partly acceptance:
- Conditional acceptance is when the offeree accepts the offer, but with certain conditions attached.
- Partly acceptance means that the offeree accepts only some of the terms and conditions of the offer, rejecting the rest.
- These two terms indicate a partial acceptance, so this option is also incorrect.

d) Partly and unqualified acceptance:
- Partly acceptance means that the offeree accepts only some of the terms and conditions of the offer, rejecting the rest.
- Unqualified acceptance means that the offeree accepts the offer as it is, without any changes or additions.
- These two terms contradict each other, so this option is incorrect.

Conclusion:
Based on the explanation above, the correct answer is option 'A', which states that the acceptance may be absolute and unqualified.