TOEFL Reading: ETS-TOEFL阅读机经 - F0TG83JP3WIRX7E3L$

Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. For about 100 years, chromatic adaptation was thought to have a greater impact on seaweed distribution than various other factors such as herbivory and competition. B. The hypothesis of chromatic adaptation was accepted for about 100 years until it was concluded that other factors could explain the distribution of seaweeds. C. About 100 years after the concept of chromatic adaptation was developed, it was realized that seaweed zonation occurred even in the absence of chromatic adaptation. D. Until the hypothesis of chromatic adaptation became widely accepted 100 years after it was proposed, various other factors were thought to determine the distribution of seaweeds.