Question

which color are the hottest stars?
○ blue
○ orange
○ red
○ yellow

Explanation:

Star temperature correlates with color via black-body radiation: hotter stars emit higher-energy, shorter-wavelength light. Blue light has the shortest wavelength among the options, corresponding to the highest surface temperatures (up to 50,000 K or more), while red, orange, and yellow stars have progressively lower temperatures.

Answer:

blue