When the Spanish Arrived in Mexico, the Nahuatl-Speaking Residents of Tlaxcala

When the Spanish arrived in Mexico, the Nahuatl-speaking residents of Tlaxcala were:

A) Organizing the Aztec resistance to European conquest.
B) Held out in opposition to the Aztec core and supplied soldiers to the Spanish.
C) Newly conquered by non-Nahuatl-speakers in Tenochtitlán.
D) Establishing contact with the Maya communities of the Yucatán through the Europeans.