If we exchange the labels on particles that are part of a wavefunction (for example, if we exchange the labels on particles 1 and 2 and call them particles 2 and 1 instead), what might happen to our wavefunction? (check all that apply) a. the particles become bosons b. the absolute value of the wavefunction must be taken c. The wavefunction will become ionized d. The parity of the wavefunction will go to zero e. the sign might change f. the particles become fermions g. The wavefunction will invert around a center of inversion h. nothing may happen