Which of the statements are true regarding Google's financial statements in 2020?

a. Google's assets related to customer inventory and receivables are significantly larger, than what it reports for property and equipment or marketable securities.

b. About one-third of Google's assets consist of marketable securities and about one-fourth of their assets consist of property and equipment.

c. Google held 42.8% of its assets in marketable securities and 26.5% of its assets in property and equipment.

d. Google decreased the amounts held in marketable securities and property and equipment compared to the prior year.