Is the drawn T' the doubled version of T? If not, what is the doubled version? And how do I run Hierholzer's algorithm on this?(See part (a)) Figure 2: Rooted binary tree In the rooted binary tree in Figure 2, we'll choose alphabetically when unsure. Then a breadth-first search would traverse in this order r,a,b,c,d,e,f while a depth-first search would traverse in this order r,a,c,d,b,e,f (a) Suppose T is the rooted binary tree in Figure 2. Let T is its doubled version. Run Hierholzer's algorithm (alphabetic order when undecided). (b) Which search was this?.