C, almost and suddenly are adverbs because they describe the verbs lost and took
A person can change their opinions/feelings on animals for multiple reasons. For example, they can make friends with an animal or start a relationship that involves no communication (cause animals can't talk) but lots of love. Also, if the animal starts being friendly to the person, there's a high chance that the person may not take their love for granted.
Hello!! I, personally, think it's A. Direct.
Yes, it's a dependent clause.