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Which sentence provides evidence that best supports the central idea of the second paragraph?

Question 5 options:

A)

Predicting an eruption is quite challenging, but there are a number of warning signs.


B)

Volcanoes do not erupt on a particular timetable or in any particular pattern.


C)

Volcanoes can grow thousands of feet as magma builds up beneath the mountain's surface.


D)

Mt. St. Helens is an example of a composite volcano, which can explode violently.