The Fundamental Rights are a core part of the Indian Constitution, enshrined in Part III (Articles 12-35). They guarantee civil liberties to all citizens. Article 21A is a specific article that was added later to this part.
Step 1: Understanding the Question:
The question asks to identify the fundamental right that is guaranteed by Article 21A of the Constitution of India.
Step 2: Detailed Explanation:
Article 21A was inserted into the Constitution by the 86th Constitutional Amendment Act, 2002. It states:
"The State shall provide free and compulsory education to all children of the age of six to fourteen years in such manner as the State may, by law, determine."
This article makes elementary education a fundamental right. To enforce this, the Parliament enacted the Right of Children to Free and Compulsory Education (RTE) Act in 2009.
Let's look at the other options and their corresponding articles:
Right to Freedom of Speech and Expression: Guaranteed under Article 19(1)(a).
Right to Equality: Covered under Articles 14 to 18.
Right to Constitutional Remedies: Guaranteed under Article 32, which allows citizens to move the Supreme Court for the enforcement of their fundamental rights.
Therefore, Article 21A is directly and exclusively related to the Right to Education.
Step 3: Final Answer:
Article 21A is related to the Right to Education.
\[
\boxed{\text{Right to Education}}
\]