From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have

Options

A. Tracheae and sieve tubes
B. Tracheids, tracheae and sieve tubes
C. Tracheids, sieve cells and sieve tubes
D. Tracheids, tracheae and sieve cells

Answer

B

Explanation

In angiosperms sieve tubes are present but in gymnosperms sieve cells are present. Tracheids are present in gymnosperm but in angiosperm both tracheids and vessel present.