Which of the following scenarios would trigger the Reserve Bank of Australia (RBA) to implement the contractionary monetary policy?

a.

The unemployment rate increases, and it is predicted to increase to 7% p.a. next year, which would be the highest rate of unemployment in almost 50 years.

b.

A significant appreciation of the Australian dollar against the US dollar, reaching a record high of AUD 1.10 against the US dollar

c.

Over the year, the inflation rate was 5.1% p.a, and a further rise in inflation is expected in the near term. Meanwhile, the unemployment rate remains low, and economic growth also remains positive.

d.

The outlook for economic growth in Australia remains challenging due to the ongoing uncertainties of the global economy