What is the main unit of living things

Greta bought her friend elijah a 20-ounce cup of gourmet coffee at the mall. after elijah takes a sip, he discovers that it does not have the ingredients he had hoped for, although he had told greta what he wanted. which action should elijah take in this situation? assume that the coffee is nonrefundable. a. he should hint sarcastically to greta that she got the order wrong. b. he should raise his voice to greta so she doesn't make the same mistake again. c. he should greta for for the cup of coffee and try to enjoy it. d. he should toss the coffee into the trash when greta looks away.