While researching a topic, a student has taken the following notes:

* In 2018 researchers Adwait Deshpande, Shreejata Gupta, and Anindya Sinha were observing wild macaques in India's Bandipur National Park.
* They saw macaques calling out to and gesturing at humans who were eating or carrying food.
* They designed a study to find out if the macaques were intentionally communicating to try to persuade the humans to share their food.
* In the study trials, macaques frequently called out to and gestured at humans holding food.
* In the study trials, macaques called out to and gestured at empty-handed humans less frequently.

The student wants to present the study's results. Which choice most effectively uses relevant information from the notes to accomplish this goal?