Consider the following statements:statements I Each food level in ecosystem is called trophic level. Statement II:In commensalism. One is benefitted and neither is harmed.

(a) Both the statements are true and statement II is the correct explanation of statements I.

(b) Both the statements are true but statementsII is not the correct explanation of statements I

(c) statements I is true, but statements II is false.

(d) statement I is false but statement II is true.