Published in 1905, which poetry collection marked Sarojini Naidu's literary debut?

The correct option is The Golden Threshold.

Educational Context & Explanation:
1. Literary Debut: The Golden Threshold, published in London in 1905, was the debut poetry collection of Sarojini Naidu. Its publication brought her international literary acclaim and established her reputation as a master of lyric poetry.
2. The Nightingale of India: The collection features rich imagery capturing Indian culture, folklore, nature, and emotional themes. Her poetic tone and melodic rhythms earned her the famous title "Nightingale of India" (Bharat Kokila).
3. Overview of Other Options:
• The Bird of Time: Songs of Life, Death & the Spring was published later in 1912.
• The Broken Wing: Songs of Love, Death and the Spring was published in 1917.
• Songs of India refers generally to her poetic corpus and themes rather than her 1905 debut publication.

Hence, Sarojini Naidu's 1905 literary debut poetry collection is The Golden Threshold.