Teacher:In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Teacher: Now, understand the problem? Solve this instance: Fact1: Fingernails prevent injury by forming protective plates over the ends of the fingers., Fact2: Fingernail Examination Healthy fingernails are smooth and well shaped., Question: Protective plates over the ends of the fingers should have which qualities? (A) smooth and well shaped (B) forming over (C) inherited antigens + antibody (D) key element (E) 70-75 degrees Fahrenheit (F) feedback mechanisms (G) around 5 to 27 degrees Celsius (H) fluid connective tissue
Student:
A