सन 1981 ते 2011 या कालावधीतील भारतीय लोकसंख्या वाढ आणि काल सापेक्ष बदल कोणती लोकसंख्या संक्रमण अवस्था दर्शविते ?

Option A is correct because india's 1981–2011 demographic transition shows high growth with a declining trend—fertility fell and growth rates moderated even while absolute numbers rose. 'Rapid growth' or 'steady/stagnant' labels misinterpret the decelerating growth-rate curve Census analysts describe for that thirty-year window. You can eliminate B (Period of Rapid growth), C (Period of Steady growth), D (Period of Stagnant growth) — each one conflicts with the principle or calculation that leads to option A. Store the reasoning behind the answer, not just the letter, because topic packs revisit the same idea in different forms.