Which of these techniques are the experimenters likely to use?

A person is asked to take part in an experiment that is examining brain areas associated with changes in verb generation and mathematical problem solving. Which of these techniques are the experimenters likely to use
A ) Computed Tomography
B ) Magnetic Resonance Imaging
C ) Electroencephalogam
D ) Functional Magnetic Resonance Imaging
E ) Diffusion Tensor Imaging