As Mufti Mohammed Sajjad put it in his article regarding Taqlid, the obligation is generally to do Taqlid of scholars if you aren't one, and this comprises of both Shakhsi and "general" Taqlid. And this would go with answer n. 3. But there is a further point: due to the corruption of our times, nowadays the specific Shakhsi type of Taqlid is wajib. And this would go with answer n. 1. So, theoretically, 3; practically, 1.