IMDB Movie Analysis: Movie Genre Analysis task doubt

A. Movie Genre Analysis: Analyze the distribution of movie genres and their impact on the IMDB score. After seperating the genres using "Text to Colums" what is the next thing to do. Should I consider all the genres for each movie or just a single genre (like selecting only one colum B and ignore the rest other colums C-H in the image). Didn't understand the task "Determine the most common genres of movies in the dataset. Then, for each genre, calculate descriptive statistics (mean, median, mode, range, variance, standard deviation) of the IMDB scores."