Land that is suitable for growing plants and timber is called fertile.
Answer: A
Explanation
Fertile lands are characterized by good soil suitable for cultivating plants and crops.
People move into this area as it is Eco-friendly.
Urban areas are developed with buildings, railroads, bridges, highways etc.
Next to fertile lands, comes arable land. With the help of ploughing or tilling, one can cultivate crops.
Infertile lands are lands whose fertility has come to an end due to man-made activities or calamities that drain the minerals away.