Mary Lou Retton made history at the 1984 Los Angeles Olympics by being the first American woman to accomplish what?

Mary Lou Retton made history at the 1984 Los Angeles Olympics by winning the all-around gold medal in gymnastics, becoming the first American woman to achieve this milestone. Her exceptional performance included a series of highly challenging routines that showcased her skill, agility, and artistic presentation. This victory not only highlighted her personal accomplishments but also marked a significant moment in U.S. sports history, as it demonstrated the rising talent of American female gymnasts on the global stage. The achievements of Retton inspired a generation of athletes and contributed to the growing popularity of gymnastics in America.

The other options do not pertain to Mary Lou Retton’s accomplishments at the Olympics. While figure skating, weightlifting, and basketball are also notable in their respective fields, they do not connect to Retton's historic all-around gold win, which is specifically centered in gymnastics.