Answer:
The color of a star be with a surface temperature of 5000 6000 K is Yellow.
C is correct option.
Step-by-step explanation:
According to Wien's displacement law,
The black body radiation will peak at different wavelength due to different temperature.
In mathematical form,

The wavelengths are inversely proportional to the temperature.
According to stellar spectral types
The standard classes
Spectral classes -Temperature - color of stars
M < 3500 K - Red
K - 3500 - 5000 K - Yellow orange
G - 5000 - 6000 K - Yellow
F - 6000 - 7500 K - Yellow white
A - 7500 - 10000 K - white
B - 10000 - 30000 K - Blue white
O - 30000 - 60000 K - Blue
Hence, The color of a star be with a surface temperature of 5000 6000 K is Yellow.