<h2>Right answer:</h2><h3>3. Carla es más alta que Cristina.</h3><h3 />
We often use adjectives to compare things, people, events, ideas, among others. This is used to compare nouns in three ways, <em>comparisons of equality, comparisons of inequality, and in superlatives.</em> In this problem, we need to use comparisons of inequality. These comparisons just as <em>mas que</em> conveys the idea of <em>more than</em> or <em>menos que</em> conveys the idea of <em>less than</em>. Since Carla is taller than Cristina, therefore:
<em>Carla es más alta que Cristina</em>