The activity which would most likely be the theme of a traditional ethnic festival in Texas is Alamo battle reenactment.
This refers to the period of battle between the Republic of Texas and Mexican forces in 1836 during the Texas Revolution which the Mexican forces won.
Hence, we can see that the reenactment of the Alamo battle would be the most likely activity which would be the theme of a traditional ethnic festival in Texas as it relates to their history.
Read more about Alamo battle here:
https://brainly.com/question/20189261
