Solved by a verified expert:BY the statement ‘survival of the fittest’, Darwin meant that ________.(A) The strongest of all species survives (B) The most intelligent of the species survives (C) The cleverest of the species survives(D) The most adaptable of the species to changes survivesCasparian strips are present in the ________ of the root. (A) epiblema (B) cortex(C) perycycle(D) endodermis