Explanation:
The Preamble of the Indian Constitution is a brief introductory statement that sets out the fundamental principles, values and objectives of the Constitution. It is not a source of any substantive power or rights, but it reflects the aspirations and commitments of the people of India.

I. The Preamble provides the citizens the liberty of thought, expression, belief, faith and worship:
- The Preamble declares that the Constitution is adopted to secure to all citizens justice, liberty, equality and fraternity.
- Liberty is one of the essential components of the Preamble, which means the freedom to act, think and speak without external restraint.
- The Preamble does not explicitly mention the freedom of thought, expression, belief, faith and worship, but they are implicit in the concept of liberty.
- The freedom of thought and expression is a fundamental right under Article 19(1)(a) of the Constitution, which guarantees the right to freedom of speech and expression, including the right to criticize, dissent, protest and communicate ideas.
- The freedom of religion is also a fundamental right under Article 25 of the Constitution, which guarantees the right to profess, practice and propagate any religion subject to public order, morality and health.

II. The citizens are entitled to unhindered liberty:
- The concept of liberty in the Preamble does not mean absolute or unlimited freedom, but it is subject to reasonable restrictions in the interest of public order, decency, morality, security, sovereignty and integrity of India.
- The Constitution provides for various limitations on the freedom of speech and expression, such as restrictions on hate speech, defamation, incitement to violence, sedition, obscenity, etc.
- Similarly, the freedom of religion is subject to reasonable restrictions on the ground of social welfare, secularism, public order, etc.
- Therefore, the citizens are not entitled to unhindered or absolute liberty, but they have the right to enjoy their liberties within the framework of the Constitution and the laws made thereunder.

Hence, the correct answer is option 'A'.