What is the author’s main objective in writing the passage

Which of the following is an inference which can be made from the facts stated in the above paragraph?

Which of the following is an assumption which is implicit in the facts stated in the above paragraph?

Which of the following is a conclusion which can be drawn from the facts stated in the above paragraph?

Which of the following is an 'assumption' which is implicit in the facts stated in the above paragraph?

Which of the following is an 'inference' which can be made from the facts stated in the above paragraph?