A Pied Kingfisher in Its First Year of Life Helps

Multiple Choice

A pied kingfisher in its first year of life helps in the feeding of three full siblings who would not have made it without the helper's efforts. In this first year the bird does not raise any of its own offspring. In the second year of its life the pied kingfisher mates and raises two of its own offspring. After the first two years, what is the inclusive fitness of the pied kingfisher?

A) 0.75
B) 1.50
C) 2.50
D) 3.00