Read the following Assertion and Reason and choose the correct option. Assertion: Bryophytes are used as food for space travellers. Reason: Mosses along with algae are the first to colonise rocks.

Step-by-step solution

Bryophytes in general are of little economic importance but some mosses provide food for herbaceous mammals, birds and other animals. Mosses along with Lichens are the first organisms to colonise rocks and hence, are of great ecological importance.