Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread? (I) Temperature of about $25^{\circ} \mathrm{C}$ (II) Temperature of about $5^{\circ} \mathrm{C}$ (III) Relative humidity of about $5 \%$ (IV) Relative humidity of about $95 \%$ (V) A shady place (VI) A brightly illuminated place Choose the answer from the following options.

Mucor is a saprophytic fungus. It grows on decaying dung and on some food stuffs. It shows the best growth on a piece of bread at about $25^{\circ} \mathrm{C}$ with relative humidity of about $95 \%$ in moist and shady places. Related Theory Mucor is a genus of mould. They are formed from thread-like hyphae that spread out from a visible mycelium. It causes mucormycosis. Most people develop this infection by breathing in mould spores. Less often, infection can develop when spores enter the body through a cut or open wound. It was much prevalent during second wave of COVID-19 (as black fungus) in 2021 in India.