Complex sentence: Biblical scholars, however, agree almost unanimously that the Torah is the work of many authors over any centuries, and that it reached its present form in the post-Exilic period (i.e., between c500-300 BCE).
Split into simpler sentences: Biblical scholars, however, agree almost unanimously that the Torah is the work of many authors over any centuries. There is general agreement that it reached its present form in the post-Exilic period (i.e., between c500-300 BCE).