What does the term Jungvolk mean?

The correct option is A. Nazi youth groups for children below 14 years of age.

To educate the children about Nazi ideology, Hitler created youth organizations. The development of youth organizations meant to groom the future leaders of his Nazi Party dated back to the establishment of the party in the early 1920s. Membership was voluntary until 1936, when all boys and girls in Nazi Germany were required by law to join a Nazi youth group. All boys over 10 years old joined the Jungvolk (meaning “Young People”), and then graduated to the Hitler Youth when they turned 14.