<h2>Right answer:</h2><h3>a. enseña </h3>
Enseña is the more logical answer because it comes from the verb enseñar (to teach). So enseña is the conjugation of this verb for the third person singular in the simple present tense. The simple present tense is used to talk about habitual actions or routines. So Miguel is a math teacher. Finally:
<em>Miguel </em><em>enseña</em><em> matematicas (Miguel </em><em>teaches</em><em> math)</em>
Hay muchas maneras de mantenerse en forma. Una de ellas es hacer dieta. Haciendo dieta te ayuda diariamente para tener un plato balanceado de comida, y también para consumir más nutrientes y proteína. Otra manera es haciendo ejercicio. Esto ayuda a los músculos, y también ayuda por perdiendo peso. Una última manera es bebiendo mucha agua. Agua de hidrata y también no te afecta mucho como la soda o jugos artificiales te pueden afectar.
Translation:
There are many ways to stay in shape. One of them is having a diet. Doing a diet can help you daily by giving you a balanced plate or food, and also by giving you more nutrients and proteins. Another way is by doing exercise. This helps you with your muscles and it also helps by making you lose weight. One last way is by drinking a lot of water. Water keeps you hydrated and it also doesn't affect you as soda and artificial juices do.
Hope this helped