Question

question 13
while researching a topic, a student has taken the following notes:

• in astronomy, the mass of stars can be described in units called solar masses.
• one solar mass is roughly equal to the mass of the sun.
• the mass of the star proxima centauri is 0.122 solar masses.
• the mass of the star sirius a is 2.063 solar masses.

the student wants to emphasize the mass of sirius a. which choice most effectively uses relevant information from the notes to accomplish this goal?
a) the mass of stars, like proxima centauri, can be described in units called solar masses.
b) in astronomy, the mass of stars can be described in units called solar masses, and one solar mass is roughly equal to the mass of the sun.
c) the sun is more massive than proxima centauri, which has a mass of 0.122 solar masses.
d) with a mass of 2.063 solar masses, sirius a is more massive than the sun.

Explanation:

Options A and B do not emphasize Sirius A's mass. Option C focuses on Proxima Centauri and the Sun. Option D directly states Sirius A's mass and compares it to the Sun, emphasizing its mass.

Answer:

D. With a mass of 2.063 solar masses, Sirius A is more massive than the Sun.