The correct option is (c).
Explanation
The Braille system is a tactile literacy code used by people who are blind or visually impaired. It was developed by Louis Braille and relies on specific patterns of dots to represent language.Statement 1 is Correct: Braille is the primary resource and reading-writing system for visually challenged persons, enabling them to access text through touch.
Statement 2 is Incorrect: The dots in the Braille system are raised (embossed), not depressed. This elevation allows the reader to recognize the patterns by running their fingertips over them.
Statement 3 is Correct: The learning process for Braille typically follows a structured sequence, beginning with the recognition of letters, followed by special characters and letter combinations.
Key Takeaway: Braille utilizes cells of raised dots (usually a 6-dot matrix) to represent characters, which are deciphered through tactile sensation rather than visual sight.