Step 1: Read the clue first. Start from the time marker "post 1990" in the passage and see which process is attached to it. The passage names globalisation as the process that gave the market a key role.
Step 2: Test choice 1. Globalization is the process the passage joins with the post 1990 period, so choice 1 fits the question exactly and is the answer.
Step 3: Test choice 2. Liberalization is a policy step taken by the state. The passage never uses it for media after 1990, so choice 2 does not match the text.
Step 4: Test choice 3. Modernization is a wide process of change that the passage does not link with the media after 1990, so choice 3 is dropped.
Step 5: Test choice 4. Secularization concerns religion and has no link to the media discussion in the passage, so choice 4 is dropped.
Final Answer: Choice 1 is the one backed by the passage, so the answer is Globalization. \[ \boxed{\text{Option 1}} \]
