Answer: (b) Only two
India is more than three times more dense than China as population density of India is 464 person per square km compare to 153 of China.
India : agricultural land: 60.5% (2018 est.) and arable land: 52.8% (2018 est.) Irrigated land : 667,000 sq km (2012)
China : agricultural land: 54.7% (2018 est.) and arable land: 11.3% (2018 est.) Irrigated land : 690,070 sq km (2012)