The 3rd one is the one that is correct
Después de la muerte de Franco, su sucesor Juan Carlos se convirtió en rey, lo que dio lugar a una nueva era en la historia de España.
English: After Franco passed away, his successor Juan Carlos became king which lead to a new era was formed in spanish history.
—Evidence—
On 22 November 1975, two days after the death of dictator General Francisco Franco, Prince Juan Carlos was sworn in as King of Spain.
Yo envío la carta a mi amiga en Nicaragua
Yes, because it talks about how the first conseptual nursing model was and all her occupations and it is interesting to know why she was known and what she did.
