Final answer:
In a recursive tree, edges cannot exist between nodes at the same level because they represent a strict parent-child hierarchy without lateral connections between sibling nodes.
Step-by-step explanation:
The question at hand is whether a recursive tree can have edges between nodes at the same level. The answer is b. No. In a recursive tree, also known as a tree data structure, edges only connect nodes from different levels, with each edge representing a parent-child relationship. There are no edges between nodes on the same level or between siblings in a properly structured recursive tree.