According to National Education Policy 2020 Mathematics and Computational Thinking is to be given increased importance as :

The correct option is It is foundational to evolving technologies like Artificial Intelligence (AI), machine learning and Data Science etc.

Step-by-Step Explanation:

1. Understanding the Context of NEP 2020:
The National Education Policy (NEP) 2020 emphasizes key foundational skills and modern multidisciplinary approaches to equip students for 21st-century skills and global technology demands.

2. Role of Mathematics and Computational Thinking:
NEP 2020 specifically highlights that Mathematics and Computational Thinking will be given increased emphasis throughout the school curriculum, starting from the foundational stage. This is because modern fields such as Artificial Intelligence (AI), Machine Learning (ML), Data Science, Robotics, and Coding are intrinsically built upon mathematical concepts and computational logic.

3. Evaluating the Options:
• Option 1: It is foundational to evolving technologies like Artificial Intelligence (AI), machine learning and Data Science etc — This accurately captures the vision of NEP 2020 regarding technological advancement and skill development.
• Option 2: Technology and computational tools act as learning aids but can never substitute the role of a teacher.
• Option 3: Increasing importance is not given because it is "difficult", but rather because of its utility and application in future-ready skillsets.
• Option 4: While essential, calling it foundational strictly to "human survival" is inaccurate compared to its primary role in modern technological evolution.

Thus, Mathematics and Computational Thinking are given increased importance because they form the foundational basis for emerging fields like AI, Machine Learning, and Data Science.