Answer:
The US marshals took Ruby Bridges to school on her first day to protect her from harm.
Step-by-step explanation:
As described in the excerpt, the marshals were serious-looking white men who were dressed in suits and wearing armbands. They had been sent by the U.S. government to drive Ruby and her mother to school, and to stay with them all day. The marshals were carrying guns, which underscores the seriousness of the situation and the potential danger that Ruby faced as one of the first Black students to attend an integrated school.