Final answer:
The small intestine is the organ that receives dual innervation from both the sympathetic and parasympathetic nervous systems.
Step-by-step explanation:
The target organ that receives dual innervation is the small intestine (A). Dual innervation refers to the situation where an organ receives nerve fibers from both the sympathetic and parasympathetic divisions of the autonomic nervous system. These two divisions often have opposing effects on the target organ. For example, the sympathetic nervous system usually prepares the body for stressful situations, often referred to as 'fight or flight' responses, whereas the parasympathetic nervous system promotes rest and digest responses. The small intestine receives signals from both divisions, where parasympathetic innervation from the vagus nerve increases peristalsis and secretion, and sympathetic innervation decreases these functions.