The ‘trusted systems’ approach has been predominant in the design of:

A.
many earlier Microsoft OS products

B.
the IBM AS/400 series

C.
the SUN Solaris series

D.
most OS products in the market

E.
None of the choices.

Explanation:
The ‘trusted systems’ approach has been predominant in the design of many Microsoft OS products, due to the
long-standing Microsoft policy of emphasizing functionality and ‘ease of use’.