Answer:
A being with a man's body, without a head, mounted on a horse is what causes confusion to ichabod
Step-by-step explanation:
When Ichabod leaves the Van Tassels' house, disappointed by Katrina's behavior, he sees a scary creature that causes great confusion and fear for Ichabod, who is a man who is not easily startled, however, he saw a huge, black being who resembled a man, sitting on a large black horse, however, this being did not have its head above its shoulders, but carried it separately from its body. This startled Ichabod to a degree that he was completely confused and bewildered, not knowing what to do.