What Hard drive would be a good upgrade choice for my Toshiba Satellite laptop c875, i3, 4Gb? [on hold]

What Hard drive would be a good upgrade choice for my Toshiba Satellite
laptop c875, i3, 4Gb? [on hold]

What Hard drive would be a good upgrade choice for my Toshiba Satellite
laptop c875, i3, 4Gb? Should I increase the ram, if so what's the most ram
that this laptop will be able to upgrade to?