'Extensive' means wide-ranging or comprehensive, which fits perfectly with the context. 'Intensive' means concentrated and doesn't fit as well.

The passage clearly states AI has revolutionized 'industries from healthcare to finance' and adoption 'reached unprecedented levels', indicating widespread adoption.

'Chasm' means a deep divide or gap, perfect for describing widened political differences. Other words suggest unity rather than division.

The passage presents 'increased productivity' (advantage) but also 'feeling isolated' (disadvantage), showing a balanced view.

'Despite' is a preposition that doesn't take 'of'. Correct: 'Despite his qualifications' or 'In spite of his qualifications'.

Perseverance means persistent effort despite difficulties. The sentence context (despite injuries) matches perseverance perfectly. Other options are semantically inappropriate.

'Each' is a singular subject requiring singular verb 'was', not 'were'. The prepositional phrase 'of the students' doesn't change the subject number.

'Inspite' is incorrect. The correct forms are 'in spite of' (two/three words) or 'despite' (one word). This is a common spelling error.

Hybrid means combining two different elements. The sentence explicitly mentions combining traditional and modern methods. This is the only semantically appropriate option.

Impair means to damage or weaken. Stress and burnout negatively affect productivity and retention. The context requires a negative-impact verb.