B
"Me" digo la verdad = I tell the truth to myself
This is grammatically incorrect to say in Spanish.
"Le" digo la verdad = I tell the truth to her/him/you (f.)
'Vosotros' does not refer to any of these pronouns.
"Nos" digo la verdad = I tell the truth to us
This is grammatically incorrect to say in Spanish.
Mis hermanos se lavan los dientes después de comer
Itinerario is a masculine noun, so: Rosalba LO tiene.
