What could Canada have done in the late 1800’s to build a stronger identity?

How do i use this to get the right answer

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Children begin to use tools at about what age? a. 18 months b. 2 years c. 1 year d. 6 months