The correct answer is Option A.
INFLICTS means to cause pain or suffering. In the given sentence, GOD has cause pain through ten plagues on Egypt. Thus INFLICT is the correct answer and no change is required in the given sentence.
The remaining options are incorrect because:
Option B- AFFLICTS means to cause pain due to illness or injury.
Option C- INFLECTS means to change and vary.
Option D- IMPACTS means to have an effect on.
Thus Option A is the correct answer.