The verb, ser, is in the singular el/ella/usted tense, meaning that the subject is only one person or thing. This eliminates the two middle choices, as they are multiple people.
Next, the adjective. Alto is in the masculine form, so Maria, as it is a girl name, is also able to be eliminated.
A. Las empandas (which by definition are a Spanish or Latin American pastry turnover filled with a variety of savory ingredients that are baked or fried.)
