A. Pedants have the right of way at intersections.
A pedant is a person who is a perfectionist and just obnoxiously meticulous, specifically with language or academics. The proper word to use for selection A. would be pedestrian, which means a person walking along a road.
The study of geometric properties and spatial relations unaffected by the continuous change of shape or size of figures.
2.
the way in which constituent parts are interrelated or arranged.
"the topology of a computer network"