Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Get immediate and reliable solutions to your questions from a community of experienced experts on our Q&A platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

The phylum with endoderm, mesoderm, and ectoderm is
a. Cnidaria.
b. Porifera.
c. Platyhelminthes.
d. all of the above.