Which sentence is punctuated correctly?
A. Our class is learning, about plant cells and Reza’s class, is learning about animal cells.
B. Our class, is learning about plant cells and Reza’s class, is learning about animal cells.
C. Our class is learning about plant cells and Reza’s class is learning about animal cells.
D. Our class is learning about plant cells, and Reza’s class is learning about animal cells.