Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: Which of the following molecules has triangular plane geometry? 
 Options:  <1> BF3. <2> NH3. <3> AsH3. <4> XeO3. <5> ClF3.
