D. As a symbol of loyalty, nobles were given the choice of either military service or paying fee.
I think B is the appropriate answer among the others. Hope this helps :)
they started trying to get their voices hread in 1929
everything can be found in the picture
They are guided by survival instincts.
<span>they observe which way to go from other people. </span>
<span>they receive positive reinforcement from arriving at a destination. </span>
<span>they have developed cognitive maps.</span>
