Final answer:
The horizontal information flow in this question is represented by option 3) Warehousing sends completed picking ticket to shipping. Hence, the correct answer is option (3).
Step-by-step explanation:
In this question, the horizontal information flow is represented by option 3) Warehousing sends completed picking ticket to shipping. Horizontal information flow refers to the exchange of information between departments or individuals at the same organizational level within a company.
In this case, the warehousing department is sending the picking ticket to the shipping department, both of which are at the same level within the organization.