A cuckoo lays its egg in another bird's nest, and the newly ...

[abc]

A cuckoo lays its egg in another bird's nest, and the newly hatched cuckoo
  has the innate ability to push the other eggs out of the nest.
 
  a) rare
  b) inborn
  c) ruthless
  d) surprising

Question 2

Since I was the one who had baked the cake for our family, I figured I could
  eat the last slice with impunity.
 
  a) in a hurry
  b) with pleasure
  c) in a secret manner
  d) without negative consequences

[trampas]

Answer to Question 1

b

Answer to Question 2

d