The Solar X-ray Monitor (XSM)

Consider the following statements:

  1. The Sun’s outer atmosphere is known as corona.
  2. The temperature of the photosphere – the visible surface of the Sun – exceeds one million Kelvin.
  3. The Solar X-ray Monitor (XSM) on board Chandrayaan-2 provides spectral measurement of soft X-ray spectrum of the Sun.

Which of the above statements is/are true?

A
1 and 2
B
2 and 3
C
1 and 3
D
1,2 and 3
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