Choose the one-word substitute that means "of or connected with the sense of touch".

Introduction / Context:
One word substitution questions test your vocabulary and ability to match precise English terms with given definitions. The phrase of or connected with the sense of touch belongs to the area of sensory perception. Such terms are useful in science, medicine, psychology, and literature. Knowing that tactile relates specifically to touch helps you understand texts about human senses and design, such as tactile feedback in technology.

Given Data / Assumptions:

• The definition provided is of or connected with the sense of touch.
• Four candidate words are given, each from different semantic fields.
• The task is to identify the single most accurate match.
• We assume standard dictionary meanings for all words.

Concept / Approach:
In English, each of the five senses has its own technical adjective. Visual relates to sight, auditory to hearing, olfactory to smell, gustatory to taste, and tactile to touch. Therefore, we should look for a word that fits this pattern. By recalling that tactile comes from Latin tactus meaning touch, we can directly link it to the given definition. The other options involve perception or listening but not specifically the sense of touch.

Step-by-Step Solution:
Step 1: Identify the key phrase sense of touch in the question. Step 2: Recall the set of adjectives for senses and match touch with tactile. Step 3: Check the standard meaning of tactile as relating to or involving touch. Step 4: Review other options to ensure that none of them expresses the same idea. Step 5: Select tactile as the only exact match.

Verification / Alternative check:
Imagine examples where the word is used naturally, such as tactile sensation, tactile paving, or tactile feedback in mobile phones and game controllers. In all these contexts, tactile refers to something that can be felt with the skin. None of the other options are used in combination with words like sensation or feedback in this manner. This usage based check confirms that tactile is the correct answer.

Why Other Options Are Wrong:
Apperception refers to the process of understanding a new idea by relating it to previous knowledge, not specifically to any one sense.
Eavesdrop means to listen secretly to other people, so it relates loosely to hearing, but not to the sense of touch.
Hark is an old fashioned verb meaning listen or pay attention, again related to hearing but not at all connected with touch.

Common Pitfalls:
Students sometimes confuse tactile with tactical because of similar spelling, but tactical concerns strategy or plans. Others might think apperception is linked to senses generally, yet it is a broader psychological term. To avoid confusion, remember the pair touch and tactile as a fixed association, just like smell and olfactory, or hearing and auditory.

Final Answer:
The correct one word substitute for of or connected with the sense of touch is Tactile.