Question

what caused the potatoes in ireland to rot?
a. the irish used too many pesticides.
b. a fungus rotted them and turned them black.
c. growing too many potatoes ruined the soil.
d. wild animals that carried diseases.

Explanation:

The Irish Potato Famine was caused by a fungus (Phytophthora infestans) that infected potatoes, causing them to rot and turn black. Option a is incorrect as pesticides weren't overused; option c is wrong as soil ruin wasn't the cause of potato rot; option d is incorrect as wild animals weren't the cause.

Answer:

b. A fungus rotted them and turned them black.