Que tipo de sustantivos es la palabra porcelana

Select the letter from the list that best fits the definition (be) h r s x z y f b

What is the purpose of creating tension in a story? oa. to describe in specific detail the story's settingob. to neatly tie up loose ends at the story's closeoc. to move the reader toward the story's climaxod. to reveal the author's personal bias and opinion

My spanish teacher said to make these sentences into "ar" verb conjugations. can someone plz me with that? 1. ellos están en la computadora 2. la chicas están estudia 3. la chicas están hablamos 4. el ojo de el señor es marrón 5. la muchacha es feliz 6. la muchacha cantar