Which one of the following primitive type of corn has less economic importance?

Pod corn, also known as "tunicate maize" or "wild maize," is a unique variety of maize (corn) characterized by its distinctive husks that enclose individual kernels. Unlike typical maize varieties, which have kernels exposed on a cob, pod corn has each kernel enclosed within a separate husk or "pod." While pod corn is not widely grown for commercial purposes, it is sometimes used in research and breeding programs to study certain genetic traits and to develop new maize varieties.