text: In<unk>  (that is 'in the living organism') magnetic resonance spectroscopy (MRS) is a specialised technique associated with magnetic resonance imaging (MRI).
option_0: In vivo magnetic resonance spectroscopy
option_1: Nuclear magnetic resonance spectroscopy
option_2: Near infrared spectroscopy
option_3: Biological small-angle X-ray scattering
option_4: Electromagnetic spectrum
option_5: Pressure volume diagram
option_6: Infrared spectroscopy
option_7: Functional magnetic resonance imaging