Option 1 -> Garrulous means excessively talkative, which contradicts "hardly spoke."
Option 2 -> Impetuous means acting hastily or impulsively, unrelated to speaking habits.
Option 3 -> Verbose means using too many words or being wordy, opposite of speaking little.
Option 4 -> Taciturn means habitually silent or reserved in speech, fitting someone who "hardly spoke."
Hence, Option 4: taciturn -> The sentence describes someone who hardly spoke, and taciturn specifically means reserved or uncommunicative in speech, making it the perfect descriptor for someone who speaks very little -> correct