Which of the following organisms is unicellular?

Which of the following environmental conditions are essential for optimum growth of $Mucor$ on a piece of bread?
$A.$ Temperature of about $25^{\circ}C$
$B.$ Temperature of about $5^{\circ}C$
$C.$ Relative humidity of about $5\%$
$D.$ Relative humidity of about $95\%$
$E.$ $A$ shady place
$F.$ $A$ brightly illuminated place
Choose the answer from the following options.

Which of the following organisms possesses a cell wall?

The cell wall of this organism is composed of fungal cellulose (chitin).

What is the study of fungi called?

What are Club fungi?