Sam didn't expect to see something like that underground. He used his hand to shade his eyes from what?\nOptions:\n- direct sunlight\n- brightness\n- moon\n- full sunlight\n- bright light
Please answer and provide answer explanation.
bright light
Hand is used when there is bright light.

Bright light is not comfortable for eyes so a person needs to shade his eyes.

.

So, the final answer is bright light