Multiple choice Which of the following are examples of C4 plants? Crassula ovata Zea mays Saccharum officinarum Hordeum vulgare Oryza sativa Both 1 and 3 Both 1 and 5 Both 2 and 3 Both 2 and 5 Both 3 and 4 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Both Zea mays and Saccharum officinarum are examples of C4 plants.