What is the primary purpose of Breadth-First Search (BFS) in graph traversal?

To find the shortest path in a weighted graph
To explore all vertices at the present depth before moving on to vertices at the next depth level
To sort the vertices of the graph
To find a cycle in the graph

What is the primary purpose of Breadth-First Search (BFS) in graph traversal?

Step 1: Understand that BFS is a method used to explore graphs, which are made up of nodes (or vertices) connected by edges.
Step 2: Recognize that BFS starts at a specific node and explores all its neighbors first.
Step 3: After exploring all neighbors of the starting node, BFS moves on to the neighbors of those neighbors.
Step 4: This process continues level by level, meaning it explores all nodes at the current depth before going deeper.
Step 5: The primary purpose of BFS is to find the shortest path between two nodes in an unweighted graph, as it guarantees that the first time it reaches a node, it does so using the shortest possible path.

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