Q. Consider the following statements with reference to ‘Proton Beam Therapy (PBT)’:
1.It is a form of radiotherapy used to treat certain cancers. 
2.It uses X-rays to deliver a dose of radiotherapy.
3.Apollo Hospital is the only center in the whole of South and West Asia offering the PBT.
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: C
Notes:

Explanation –

Statement 1 and 3 are correct. PBT is a form of radiotherapy used to treat certain cancers. Apollo Hospital is the only center in the whole of South and West Asia offering the PBT.

Statement 2 is incorrect. PBT uses high-energy beams of protons, rather than X-rays, to deliver a dose of radiotherapy.

Source: ForumIAS