Final answer:
The syllabic writing system represented today in Japanese kana script. Each character in the kana script represents a syllable, rather than representing sounds or concepts, making it a syllabic writing system.
Step-by-step explanation:
The correct answer to the given question is d. Japanese kana script.
Syllabic writing systems are represented today in Japanese kana script.
The kana script is a phonetic writing system that consists of two syllabaries: hiragana and katakana.
Each character in the kana script represents a syllable, rather than representing sounds or concepts, making it a syllabic writing system.