Which of the four statements given below is different from other?

Choose the correct statement from the statements given below:The beaks are different because the birds eat different kinds of food.

Which one of the following four words is different from the other three?

Choose the correct statement from the statements given below:There is no reason for the difference in birds beaks, it just happens.

Choose the correct statement from the statements given below:The reason for the beaks of different birds being different is to make it easy to recognize them.

Which of the following statements is not correct ? Choose the correct options from the given below.