Marks: 1

In the 1960s, _______ led to the formulation for testing 'spooky action at a distance.' Spooky action is a concept that an object can be moved, changed, or otherwise affected without being physically touched by another object. This means that everything is linked together, even when separated by distance.

Choose one answer.

	a. Pauli Exclusion
	b. Schrodinger Equation
	c. gamma-ray microscope
	d. Bell's Theorem (Bell's Inequality)