A White Dwarf Star Whose Temperature Is the Same as That

Multiple Choice

A white dwarf star whose temperature is the same as that of the Sun will have a radius that is (see Fig.10-8,Comins,Discovering the Essential Universe,6th ed.) :

A) 10 times smaller than that of the Sun.
B) the same size as the Sun's.
C) 2 times smaller than that of the Sun.
D) 100 times smaller than that of the Sun.