Answer
A.
Work Step by Step
Molecular studies show that the Zygomycota has multiple evolutionary origins, and is, thus, not monophyletic (A.). In contrast, B.-D. all clearly have one evolutionary origin for each group.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.