Question

- According to the excerpt, how did astronomers use Reber's

findings to add to the knowledge of black holes?
A. Astronomers improved on Reber's radio telescope and
discovered the sources of the radio energy signals he
mapped.
B. Astronomers used Reber's radio telescope and
renamed his discoveries "radio galaxies" and "quasars."
C. Astronomers improved on Reber's radio telescope and
made new discoveries to prove his findings were wrong.
D. Astronomers used Reber's maps of the signals from the
space to locate radio galaxies.

Answer 1

its A

Step-by-step explanation:

above me has to have brainllest

Answer 2

A

Step-by-step explanation: