The correct answers are Honduras, Nicaragua, Guatemala, Costa Rica, and El Salvador.
Explanation
The Mexican Empire (1821 - 1823) is the name of the state that succeeded the independence movement of New Spain. The territory of the Mexican Empire included the same territory of the former Viceroyalty of New Spain, not including Cuba, Santo Domingo and the Philippines. The Mexican empire was divided into 24 provinces that were Las Californias, Mexico, New Mexico, Texas, Nueva Vizcaya, Coahuila, Nuevo Reino de León, Nuevo Santander, Sonora, Zacatecas, San Luis Potosí, Guanajuato, Querétaro, Puebla, Guadalajara, Oaxaca , Mérida de Yucatán, Valladolid, Veracruz, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica. Therefore, the correct answers are Honduras, Nicaragua, Guatemala, Costa Rica, and El Salvador.