Pneumatophores occur in ___________________

Pneumatophores are short, vertical and negatively geotropic roots that occur in mangrove plants. Plants having pneumatophores grow in salty marshes. They have lateral roots that grow upward into the air from horizontally secondary roots. These are called as halophytes. These roots are called pneumatophores that have lenticels for exchange of gases. Thus, the correct answer is option B.