Whats the real meaning of the phrase "in the ring" （Line 6, Para. 3)？A．Getting the ring as

Whats the real meaning of the phrase "in the ring" (Line 6, Para. 3)？

A．Getting the ring as a symbol of the non-GMO label.

B．Fighting with other companies in a boxing ring.

C．Calling other other companies to apply for the non-GMO certification.

D．Competing with other companies for the non-GMO certification.

请帮忙给出正确答案和分析，谢谢！