Sentence Correction (SC) | Re: While most of the earliest known ball courts in Mesoamerica date to 90

HelloGMATNinja and @e-gmat

If the verb in both these options was 'attest', then which option would be correct?

(B) waterlogged latex balls found at El Manati and the painting of representations of ballplayers on ceramics found at San Lorenzo attests
(C) waterlogged latex balls found at El Manati and ceramics painted with representations of ballplayers found at San Lorenzo attests