In the sentence, "the report arrived too late to be of any value to me," which word is a pronoun?

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease

When a patient becomes angry or embarrassed that they are being asked for payment, what you do to lessen the negative reaction?

How could natural selection best be used to explain the evolution of the white fur of arctic fox