How does the total change (final minus initial) in the properties of a protostar from the beginning of this track to its end compare between a star with five times the mass of our Sun, and a star with the mass of our Sun? Careful: this is a logarithmic plot. A- A 5 MSun protostar changes its temperature more than a 1 MSun protostar. B- A 5 MSun protostar changes its luminosity more than a 1 MSun protostar. C- A 5 MSun protostar changes its radius more than a 1 MSun protostar.