Sentence Correction (SC) | Using psilocybin, the naturally occurring psychedelic

Using psilocybin, the naturally occurring psychedelic compound in magic mushrooms, as medicine to treat patients with depression is still a taboo for many doctors in the present, as that for those in the past.

a. as that for those in the past
b. as have those in the past
c. as it was for those in the past
d. as those in the past did
e. like that for those in the past

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