Who is regarded as Reconstructor of Mycology?

Answer: Option B

L. R. Tulsane is regarded as a Reconstructor of Mycology.
Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy, and their use to humans, including as a source for tinder, traditional medicine, food, and entheogens, as well as their dangers, such as toxicity or infection.