CLEAN : Mexico rescuers claw through ruins in search of school survivors

What is the main focus of the first section?

• The concept of 'Only'

• The concept of 'IE'

• A detailed explanation of both concepts

• An unrelated topic

What is the duration of the first section?

• 1000 milliseconds

• 500 milliseconds

• 870 milliseconds

• 650 milliseconds

Which concept is discussed in the second section?

• Only

• None of the above

• IE

• Both Only and IE

How long does the second section last?

• 650 milliseconds

• 1000 milliseconds

• 870 milliseconds

• 500 milliseconds

Which section is longer in duration?

• Both are equal

• The second section

• Neither, they are unrelated

• The first section