Final answer:
Mount Shasta, an active volcano in Northern California, has erupted approximately 11 times in the last 3,400 years, making option A) 11 times the correct answer.
Step-by-step explanation:
The question pertains to the volcanic activity of Mount Shasta, an active volcano located in Northern California. According to geological studies and eruption records, Mount Shasta has erupted approximately 11 times in the last 3,400 years. This indicates a pattern of eruptions on average every few hundred years, although volcanic activity can vary widely in frequency and intensity. The correct answer to the question, 'How many times has Mount Shasta erupted in the last 3,400 years?' is thus option A) 11 times.