Here are several economic events that could potentially help trigger a recession. Say which category each one falls into.

War in the Middle East destroys oil fields in Saudi Arabia.

multiple choice $1$

Negative supply shift

Negative demand shift

Inflation fighting

Problems in financial markets

China suddenly cuts off exports to the United States.

multiple choice $2$

Negative supply shift

Negative demand shift

Problems in financial markets

Inflation fighting

Inflation accelerates sharply to $10$ percent a year.

multiple choice $3$

Inflation fighting

Problems in financial markets

Negative supply shift

Negative demand shift

Exports plummet as income falls in other countries.

multiple choice $4$

Negative demand shift

Negative supply shift

Inflation fighting

Problems in financial markets