Which of these is a characteristic of a monocot plant?
a. two seeds leaves
b. leaf vein in a net pattern
c. flower parts grouped in threes
d. vascular bundles arranged in ring in the stem

The correct answer is C

Monocotyledons are pants that are vascular and which produce seeds that develop from flowers and are enclosed  in fruits.  The common characteristic of monocots include:

1. Flower parts are in 3s or in multiples of threes.

2. Leaves are parallel - veined .

3. Vascular bundle are scattered throughout the cross section of the stem.

4. Seeds possess one seed leaf (cotyledon)

5. Secondary growth from a vascular cambium is absent.

6. Pollen grains have one opening.