Answer:
I believe it's B) embody
Step-by-step explanation:
Embody has multiple definitions, but in this context, it's closest to: "include or contain (something) as a constituent part". (Constituent [in this context] means "being a part of a whole".)
It wouldn't be A because probe means to search for (typically with an item), or investigate.
It wouldn't be C because concede means to admit defeat, or admit something is true or correct after denying it at first.
It wouldn't be D because speculate means to form a theory with no concrete evidence.