B.
One class of these medications acts by inhibiting the demethylation of lanosterol.  Ergosterol is the main target of both the azole and polyene types of these drugs. A classical example of these named for its mutual acid/base reactivity is amphotericin B. These drugs are indicated in cases of cryptococcosis, aspergillus infection, and candidiasis, while examples include Tolnaftate, Lamisil, and Lotramin.  Some like nikkomycins targets chitin synthesis. For 10 points, name this class of drugs that treat yeast infections, athlete's foot, and other diseases caused by members of a certain taxonomic kingdom that includes mold and mushrooms.
One class of these medications acts by inhibiting the demethylation of lanosterol.  
Antifungals [accept equivalents conveying the treatment of Fungi]