Task: Question Answering
Input (English): Question: In the most general case, the wave function of a quantum mechanical system: 
 Options:  <1> It is defined for each electron and only depends on the coordinates of that electron. <2> It depends on the spatial coordinates of all the particles that make up the system and time. <3> It never depends on time. <4> It is found as a solution to the equations of motion proposed by Newton. <5> It can always be decomposed into sum of equations for each of the particles that make up the system.
Output (English): 2