S1: Logographic writing system requires thousands of different symbols.
S2: Brahmi is written from left to right, but Kharosthi is written from right to left.
This solution examines the accuracy of two statements regarding writing systems: S1 concerning logographic scripts and S2 about Brahmi and Kharosthi scripts.
Statement S1 claims that logographic writing systems require thousands of different symbols. A logographic system uses symbols (logograms) to represent entire words or morphemes. Examples include ancient Egyptian hieroglyphs and Chinese characters. Due to the vast number of words and concepts in a language, complex logographic systems often necessitate a large inventory of symbols, potentially numbering in the thousands, to cover the vocabulary adequately.
Therefore, Statement S1 is considered correct.
Statement S2 asserts that Brahmi is written from left to right, while Kharosthi is written from right to left. Historical linguistic evidence confirms this directional difference.
Therefore, Statement S2 is correct.
Since both Statement S1 and Statement S2 have been evaluated as correct based on the characteristics of these writing systems, the option stating that both are correct is the appropriate choice.
Correct Option: 3. Both S1 and S2 are correct.