**Core Concept**
Morris (or Moro) Reflex is an involuntary reflex seen in infants, characterized by a distinct sequence of movements in response to a sudden loss of support. It helps assess the integrity of the motor and sensory pathways in the infant's nervous system.

**Why the Correct Answer is Right**
The Moro Reflex disappears around 4-6 months of age as the infant's nervous system matures and the muscles become more coordinated. This reflex is mediated by the vestibular system and involves the stimulation of the sensory receptors in the neck and back muscles. The correct answer will indicate the approximate age at which this reflex is expected to disappear.

**Why Each Wrong Option is Incorrect**
**Option A:** 2 weeks - This is too early for the Moro Reflex to disappear, as it is still a crucial reflex in assessing infant development at this age.
**Option B:** 3 months - While the Moro Reflex may start to fade around this age, it is not the correct answer as it typically disappears around 4-6 months.
**Option C:** 9 months - This is too late for the Moro Reflex to disappear, as it is expected to be absent by this age.

**Clinical Pearl / High-Yield Fact**
Remember that the presence or absence of the Moro Reflex can be an indicator of neurological development in infants. A persistently present Moro Reflex beyond 6 months may suggest underlying neurological issues.

**Correct Answer:** C. 6 months