The answer is poncho, we don't even have to know what it means! sombreros is plural so it won't match with el, and camisa and falda start with la so poncho is the right answer.
B. <span>Cuáles
</span>Cuáles" is for plural words whereas Cuál refers to singular objects/words. This essentially means that because of the usage of the word, "<span>frutas," which is plural, then B would be the correct answer.</span>
<span>¿Cómo le preguntarías a tu maestra su nacionalidad?</span>