The 'Eyes' of the potato tuber are
(1) flower buds
(2) shoot buds
(3) axillary buds
(4) root buds
(3) Tuber is oval or spherical underground modified stem lacking adventious roots. It possesses a number of spirally arranged depressions called eyes. Each eye represents node and consists of 1-3 axillary buds in the axils of small scally leaves.