单选题

ABC is a new (established 2002) asset management firm, and wishes to adhere to the GIPS standards. ABC is aware that this will entail significant input data requirements. These requirements will include（）。

A、 calculating returns for each security based on the compounding convention of the security's home market.
B、 the capture and maintenance of daily price data for all securities held.
C、 the valuation of portfolios on at least a monthly basis.

【正确答案】 C

【答案解析】

For periods beginning after January 1, 2001, valuation must be at least monthly.