Answer:
a. have maturity dates of 3 months or less
Explanation:
Cash equivalents refer to those short term highly liquid security investments such as marketable securities like commercial papers which can be converted into cash within 90 days or 3 months.
Cash equivalents are characterized by their maturity period being 3 months or lesser.
Commercial papers and certificate of deposits maturing in less than 3 months constitute cash equivalents.
Two major characteristics of cash equivalents being, their maturity period being 3 months or lesser and their maturity value is not subject to fluctuations i.e it is known in advance.
