Answer:
Convection, because boiling water has enough energy to turn into water vapour, which rises through the air and transfers heat to your hand.
Step-by-step explanation:
When water boils, it forms hot water vapour (steam). The hot vapour is less dense than air, so it rises and carries its heat energy along. This process is called convection.
B is wrong. Unless the water is boiling quite vigorously, liquid water droplets do not splash out of the pot.
C is wrong. You may be indoors where the sun is not shining.
D is wrong. Radiant energy would move directly from the pot to your hand.