Calvin Coolidge apparently embraced the view that life is an investment when he said

A) "Time is money."
B) "A penny saved is a penny earned."
C) "Buy low, sell high."
D)   "The business of America is business."

Calvin Coolidge, the 30th President of the United States, is well-known for his statement, "The business of America is business." This quote reflects his belief in the importance of commerce and industry as central to American life and prosperity, aligning with the idea that life can be viewed through the lens of investment and economic activity.