Passage II
How big a star looks at a given distance defines the star's angular size, 
(see Figure 1).
Table 1 gives of the Sun if it were observed from various distances. Table 2 gives of stars 8 light years away from Earth that have various diameters.
For a star to be seen as a disk through a telescope, the telescope's resolution, R, must be less than or equal to of the star. Table 3 shows R using yellow light for telescopes of various diameters. Table 4 gives R for a 10 m (diameter) telescope using light of different colors.
10. Table 1 gives the angular size of the Sun if it were observed from a distance of 8 light years. How would this angular size compare with the angular sizes of the 4 stars listed in Table 2 ? The Sun's angular size would be:
Your Answer is
Correct Answer is G
Explanation
As can be seen from table 2, the larger the diameter, the larger θ. The diameter of The Sun is the smallest, so the angular size is also the smallest