Answer: The soybean crop has withered in the drought.
Step-by-step explanation:
The soybean crop have withered in the drought.
'have' is a verb used for plural nouns, but 'soybean crop' is a singular noun. Hence, we can change 'have' to 'has' since 'has' is a singular verb that describes a singular noun.
New corrected sentence: The soybean crop has withered in the drought.