See the multi-choice question below:

Sentence 1: They laid down a social pecking order with themselves in first place, followed by Kshatriyas (the warriors), Vaishyas (cultivators or traders), and Shudras (serfs and those of mixed blood).

Sentence 2: They created a social hierarchy and placed themselves at the top.

If the first sentence is true, then is the second sentence true?
Pick from: a). yes; b). it is not possible to tell; c). no;
a).