The correct answer is D. LCD.
A character reader is a device that can read characters printed on a document and convert them into computer-readable text. There are several types of character readers, including optical character recognition (OCR), magnetic ink character recognition (MICR), and optical mark recognition (OMR).
OCR is a technology that uses optical character recognition software to convert images of text into machine-readable text. OCR can be used to read text from a variety of sources, including paper documents, PDF files, and images.
MICR is a technology that uses magnetic ink to encode characters on documents. MICR is used primarily in the banking industry to encode account numbers and other information on checks.
OMR is a technology that uses optical sensors to detect marks on a document. OMR is often used in surveys and tests to collect data.
LCD is a type of display technology that uses liquid crystals to create an image. LCD is not a character reader, as it does not convert images of text into machine-readable text.