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 amino acid is a precursor of neurotransmissions such as dopamine, adrenaline and noradrenaline ?: 
 Options:  <1> Tryptophan <2> Serina <3> Tyrosine <4> Aspartic. <5> Glutamic
