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 statement is true in relation to the Electron Repulsion Model of the Valencia layer applied to AB n molecules: 
 Options:  <1> The AB2 molecules are always linear. <2> The AB6 molecules are always octahedral. <3> The AB3 molecules are always triangular. <4> The AB4 molecules are always tetrahedral. <5> The AB5 molecules are always trigonal bipyramidal.
