Read the excerpt from "Bone Detective," by Lorraine Jean Hopping.

While the dentist worked on the tiger’s teeth, Diane made an alginate impression of one of its huge paws. Then, the dentist used two cupped hands to pull the tongue out of the big cat’s mouth. The heavily muscled organ was almost as long as her foot. With the dentist still holding the tiger tongue in both hands, Diane quickly went to work. The pink surface was rough, like sandpaper, but floppy and wet. She coated the top with alginate and waited for it to set. Her 15 minutes were almost up. The tiger, so calm and soft, would soon wake up and be dangerous again. Slowly and carefully, Diane peeled off the soft impression to avoid tearing it.

Based on this excerpt, what is the author’s attitude toward Diane France?

The author feels Diane is rough and impatient in her work with the tiger.
The author feels Diane is skillful and careful in her work with the tiger.
The author feels Diane is anxious and distracted in her work with the tiger.
The author feels Diane is light-hearted and humorous in her work with the tiger.