For the Parent Company in an IC Group,translation of Assets

For the parent company in an IC group,translation of assets and liabilities as well as payables and receivables of subsidiaries from the currencies of their host countries to the currency of the parent's home country

A) is a waste of time.
B) is prohibited by laws of most host countries.
C) is necessary for parent company management to understand how well subsidiaries are doing and for companywide financial reports.
D) is required by the laws of most home countries.