The catastrophe has been explained as a volcanic eruption, or an explosive outburst of gas and oil stored and accumulating at high pressure.
The 32-year-old detective with bright red crew cut and opened-collar sports shirt looked as if nothing short of a catastrophe would cause him a lick of concern.
The consequences of this catastrophe were felt far and wide, and in the spring of 1891 both the Banco Nacional and the Banco de la provincia de Buenos Aires were unable to meet their obligations.
The answer to your question is D, because that's literally the exact definition.
The highest peak of the story
MLK's "Stride Towards Freedom" is an ethos laden piece that seeks to convey to readers the importance of optimism and confidence in times of peril.