Concept:Metre refers to the rhythm of a verse line, counted by the number of stressed feet in each line.
Explanation:Read the poem aloud and tap the stressed syllables.
The opening line has four strong beats: "POI-son I-vy CAME up like a ROSE."
This pattern of four stressed beats is repeated throughout the lines.
For example, "My PALS my A-VID TOUCH es-PIED" also carries four principal stresses.
A line with four feet is called tetrameter, from "tetra" meaning four.
Since four stressed feet dominate the poem, the metre is tetrameter, not trimeter, pentameter, or hexameter.
Answer:B. Tetrameter