Choose from options: Determine if the sentence is true based on the text below:
Alfredo Cristiani vows revenge.

Cauhtemoc Cardenas said during a news conference on 7 June that the visit to Mexico by Salvadoran president Alfredo Cristiani is a visit by "a repressive ruler who oppresses a large sector of his people."
 *Yes; *It's impossible to say; *No;
It's impossible to say