单选题 Which of the following can be inferred from the passage about the technology employed in optical computing?

• (A) The technology is more expensive to develop than the technology that was required in electronic computing.
• (B) The search for technology necessary for all-optical computing is considered unfeasible and has been largely abandoned.
• (C) Optical computers systems that rely on digital partitioning algorithms in tandem with error-correction codes are considered hybrid technology.
• (D) The technology necessary for digital optical computing appears within closer reach than the technology for analog optical computing.
• (E) The most feasible version of optical computing at present is a synthesis of electronic and optical technology.