A researcher wants to test if eye color is associated with being introverted or extroverted. He randomly selects 100 people and asks them to complete a personality test that measures their level of introversion or extroversion. He then records their eye color (blue, brown, green, or other) and their personality type (introvert or extrovert). Since he aims to determine if there is a significant relationship between eye colors and personality type, which statistical test should he use? A. ANOVA B. Chi-squared statistic C. Independent samples t-test D. z-test of a population proportion