In 1975 Governor General of Australia Sir John Kerr dismissed PM Whitlam. Some people argued Kerr acted improperly because:

a. it was not within Kerr's reserve powers to dismiss prime minster

b. it was in breach of convention that a person who retains support in house of representatives is entitled to remain PM

c. it was a breach of friendship

d. it was consistent with the convention that a PM who cannot obtain supply should either seek a general election or be dismissed.