Which of the following is a way drugs can enter our bodies?

Ingestion refers to consuming a substance orally through the mouth. The other options listed, such as absorbing, combusting, and transfusing, do not involve the intake of a substance through the mouth and are therefore incorrect. Absorbing typically refers to the skin absorbing a substance, combusting refers to the burning of a substance, and transfusing refers to the transfer of blood or substances through an injection or IV. Ingesting is the most common and direct way for drugs to enter the body, as substances are broken down by the digestive system and absorbed into the bloodstream.