D
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
Which of these do scientists offer as the most recent explanation as to why many plants and animals died out at the end of the Mesozoic era?

### Choices:
A. worldwide disease
B. global mountain building
C. rise of mammals that preyed upon plants and animals
D. impact of an asteroid created dust that blocked the sunlight

### Answer:
