Thank you for posting your question here and Brainly!~
Even though you have not provided answer choices, I believe the answer is whatever letter corresponds with the answer: "It is rubbed with another object, and electrons move onto the rod."
When a rubber rod is rubbed against, let's say animal fur the electrons from the animal is being transferred to rubber rod as rubber rod has greater attraction for electron i.e. rubber rod has higher electron negativity .That's why it become negatively charged.
Energy is "the ability to do work". Energy is how things change and move. It takes energy to cook food, to drive to school, and to jump in the air. Different forms of Energy. Energy can take a number of different forms.