Which technology is primarily utilized for evaluating objective-type answer sheets during exams?

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Magnetic Ink Character Recognition (MICR)Optical Mark Recognition (OMR)Electrically Erasable Programmable Read-Only Memory (EEPROM)Compact Disc Read-Only Memory (CD-ROM)None of the above

Explanation

Among the given options, Optical Mark Recognition (OMR) is the standard technology used to scan and grade multiple-choice answer sheets efficiently. MICR is used for banking documents, EEPROM is a type of memory storage, and CD-ROM is a data storage medium.