Find the area of 14 nine and eight​

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

What’s the answer ? use the picture to see the problem

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.