Which statement best describes the limits of science? a. science cannot answer any abstract questions. b. usually science can answer only mathematical questions. c. science cannot answer religious questions. d. when used properly, science can answer any question.

The only correct statement which describes the limits of science is the first option from the scale represented above -a. science cannot answer any abstract questions as its aim is to bring direct or the closest explanation to the concrete object. For addition I would say that solving abstract questions is a deal for rhetoric.

Explanation:

Stocks give you partial ownership in a corporation, while bonds are a loan from you to a company or government. The biggest difference between them is how they generate profit: stocks must appreciate in value and be sold later on the stock market, while most bonds pay fixed interest over time.