Correct option is B
(a) Haryana → (ii) Lowest child sex ratio Correct
Haryana has one of the lowest child sex ratios in India, primarily due to gender discrimination and female foeticide.
As per Census 2011, Haryana's child sex ratio was 834 females per 1000 males, the lowest in India.
(b) Kerala → (iii) Highest sex ratio Correct
Kerala has the highest overall sex ratio in India.
Census 2011: Kerala’s sex ratio was 1084 females per 1000 males.
(c) Mizoram → (iv) Highest percentage share of urban population Correct
Mizoram has one of the highest urbanization rates among Indian states.
As per Census 2011, about 52% of Mizoram's population lives in urban areas.
(d) Uttar Pradesh → (i) Largest population size Correct
Uttar Pradesh is the most populous state in India.
As per Census 2011, UP’s population was about 199 million, the highest among all states.
Thus, the correct match is:
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)