The most accurate statement regarding how a group in Texas was affected by the number of men fighting for the Confederacy during the Civil War is: More economic opportunities were available for women.
During the Civil War, with many men away fighting, women often took on new roles in the workforce, managing farms and businesses, and thus experienced increased economic opportunities. While some enslaved people did seek freedom during this time, it was not the case for most, and the other statements provided do not accurately reflect the predominant impacts of the war on these groups in Texas.