Identify the dependent clause in this sentence: The mother dog left her bed as soon as the puppies were asleep.As soon as the puppies were asleep…

1.      Identify the dependent clause in this sentence: The mother dog left her bed as soon as the puppies were asleep.

a.      As soon as the puppies were asleep

b.      Left her bed as soon as

c.      The puppies were asleep

d.      The mother dog left her bed.