Multiple choice Which of the following is/are sub-aerial modification of stem? Bulb Rhizome Runner Stolon Sucker Only 1 and 2 Only 1, 2 and 3 Only 2 and 4 Only 2, 3 and 4 Only 3, 4 and 5 Reveal answer Fill a bubble to check yourself E Correct answer Explanation This option is correct because Runner, Stolon and Sucker are types of Sub-aerial stem modification.