In FT-NMR, how are nuclei excited?

Question: In FT-NMR, how are nuclei excited?
[A].

By radio-frequency radiation whose frequency is swept across a predetermined range

[B].

By an intense pulse of radiation which contains a wide range of frequencies

[C].

By an intense pressure

[D].

None of the above

Answer: Option A

Explanation:

No answer description available for this question.