Select the set that corresponds to the relation given in the arrow diagram below:

a$.\{(A,3),(B,1),(B,4),(D,3),(D,4)\}$

b$.\{(A,3),(B,1),(B,2),(D,3),(D,4)\}$

c$.\{(1,B),(3,A),(3,D),(4,B),(4,D)\}$

d$.\{(1,B),(2,B),(3,A),(3,D),(4,D)\}$

Graph $G$ is defined by the arrow diagram below.

Select the properties that accurately describe the following sequence with respect to graph G: $(2,3,1,3,4)$

a$.$ Not a walk

b$.$ A walk but not a trail

c$.$ A trail but not a path

d$.$ A trail and a path