Hysteresis, Soft Iron vs Steel & Shielding question from JEE Main 2020 (7 Jan, Shift 2)

Answer: (a)

1. Retentivity is $B$ at $H = 0$, where the loop cuts the $B$-axis: $1.0\text{ T}$.
2. Coercivity is the $|H|$ at which $B = 0$, where the loop cuts the $H$-axis: $50\text{ A/m}$.
3. Saturation is the maximum $B$, at the tip of the loop: $1.5\text{ T}$.
4. So the answer is (a) 1.0 T, 50 A/m and 1.5 T.