Why were programs introduced in Australia during the early 20th century?

• To stop migration from Britain
• To encourage British migrants to settle
  Explanation:

  "During the early 20th century, Australia introduced programs to encourage British migrants to settle in the country. These programs aimed to boost the population and ensure that the majority of immigrants were from Britain, maintaining cultural and social ties with the United Kingdom."
• To allow migration from all countries
• To stop all migration