Read the following statements \((A-E)\) and answer the question which follows them.
\((A)\) Inliverworts, mosses and ferns gametophytes are free living.
\((B)\) Gymnosperms and some ferns are heterosporous.
\((C)\) Sexual reproduction in Fucus, Volvox andAlbugo is oogamous.
\((D)\) The sporophyte in liverworts is more elaborate than that in mosses.
\((E)\) Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.