The paths of glory lead but to the grave" summarizes the idea that a. human efforts to succeed are pointless. c. all people receive the rewards or punishment they deserve. b. death comes even to the wealthy and powerful. d. there is danger in spurning quiet isolation in order to seek fame.

B. In this stanza, and especially in this quote, Gray is talking about all of the people who brag about their families being noble, who hold positions of power, or who are wealthy. By walking through the graveyard he is noting that those people end up just the same as those who never were rich or powerful. Every path is different, but even wealthy and powerful people end up 'the grave'.