The answer would be A) sus lecciones
Una pizza
Unos helados
Un helado
Una fruta
Unas papas fritas
Un refresco
Son unos helados
Son unos refrescos
Son unas pizzas
Es un jugo
Es una fruta
Son unas papas frutas
Is yo conozco Espana! It isn't the second or the last one because se just doesn't fit. And the third one you could technaclly say but its not the correct way.