There are some sections of the sds that are not mandatory. true or false

this is true

Explanation:

Section 12 is not mandatory

If you have any questions feel free to ask in the comments.

Im not too sure about my answer though

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.