A patient who has been taking the antibiotic, penicillin to treat a strep infection for five days. This patient presents to the clinic reporting abdominal cramping and multiple episodes of watery diarrhea for the last 2 days. The patient also reports a single episode of diarrhea with small amounts of blood. What is the nurse's best response?

“I will speak to the doctor about a prescription for loperamide to help ease the diarrhea while you complete your antibiotics.”

"You need to stop taking the medication immediately. The doctor will prescribe a different antibiotic to treat your new symptoms."

"Gl symptoms are expected side effects when taking antibiotics. Start taking the medication with food to minimize this and follow up in two days."

"This sounds like an allergic reaction. Take some diphenhydramine and follow up in two days."