Answer: Yo soy optimista
I am optimistic
Explanation: The subject in this sentence is "Yo", that is a first-person in the singular, so the verb must be conjugated in this form. Yo soy.

Answer:
False
Explanation:
Some countries speak the same Spanish and there are countries that do speak Spainish a little differently but similar.
Sirve y atiende a los clientes del restaurant.
Answer:
Humans have a negative affect
Explanation: