**Core Concept**
Simple retraction of maxillary incisors using maxillary molars as anchorage is a common orthodontic procedure that utilizes the principle of reciprocal anchorage. This technique leverages the anchoring effect of the molars to retract the incisors, thereby correcting anterior-posterior discrepancies in dental alignment.

**Why the Correct Answer is Right**
The correct answer is an example of a "tooth-to-tooth" anchorage technique, where the molars act as anchorage units to facilitate the retraction of the incisors. This is achieved through the use of orthodontic brackets and wires that apply continuous forces to the molars, which in turn pull the incisors back. The molars' robust roots and stable position in the jaw provide a solid anchor for the incisors to move against.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the use of maxillary molars as anchorage units in orthodontics.
**Option B:** This option is incorrect because it does not specify the use of maxillary molars as anchorage units, and is therefore too vague.
**Option C:** This option is incorrect because it is not a recognized orthodontic procedure for retracting maxillary incisors.

**Clinical Pearl / High-Yield Fact**
When using maxillary molars as anchorage units, it's essential to ensure that the molars have sufficient anchorage potential, typically assessed through radiographic evaluation of their root morphology and stability.

**Correct Answer:** C.