Which of the Following Statements Is True of All Embedded

Which of the following statements is true of all embedded systems?

A) The logic is so specialized that it is implemented as a single program.
B) The size and speed of the code is no longer an issue with modern processors, so assembly language is seldom used.
C) They are based on networks of distributed microprocessors.
D) They are designed to perform a narrow range of functions as part of a larger system.
E) They are implemented completely in hardware (i.e., without software) .