What safety steps should you follow when performing a hot stone massage?

a. Pick up any stones that fall to the ground and replace them back into the pot so they are not a tripping hazard
b. Check the stone temp on yourself before placing them on the client
c. Rest stones on the client's back for an extended period, so they can feel the full effects of the heat
d. If a client is diabetic, increase the temperature of the hot stone pot