The gerund in this sentence is "learning". A gerund is a verb form which is acting as a noun, in this case after the preposition "in".
Answer:
C) Resistant Family
Explanation:
This question seems very personal
D. With caution against ill use, science can give us great knowledge and progress.
Practicing is the verb a vern is the action word of the sentance. I hope it helps :)
Using the vowel with no other markings.