GMAT Critical Reasoning (CR) | Re: An agricultural cooperative wants to sell more of its less popular veg

An agricultural cooperative wants to sell more of its less popular vegetables,
zucchini in particular. A consultant has suggested that the cooperative’s farmers should
attempt to market a purple form of zucchini instead of the conventional green form,
because people generally dislike green-colored vegetables.

Which of the following, if true, casts the most doubt on the accuracy of the consultant’s assertion?

A. Broccoli and green peas, which are both green vegetables, are among the most