17) D
The argument made in text is that the ability to sleep well deteriorates with age. We must find a weakness in this argument.
1 – Correct
This statement identifies a weakness. This statement provides a new reason why old people sleep less than young people. The reason behind old people sleeping less is not because of their age but because of their impairment in memory.
This statement identifies a weakness. This statement provides a new reason why old people sleep less than young people. The reason behind old people sleeping less is not because of their age but because of their impairment in memory.
2 – Wrong
Although this may be a factual statement, it does not provide a weakness in the argument made by the paragraph.
3 – Correct
This statement says that ageing is not the only reason why old people are unable to sleep well. It identifies a weakness and states that changes in brain due to ageing causes deterioration in memory and sleep patterns.
Statements 1 and 3 are correct. So, D is the answer.
