**Core Concept**
Blood volume in preterm neonates is a critical parameter that influences fluid resuscitation and management during the neonatal period. The total blood volume in neonates is relatively small compared to adults, and preterm neonates have a higher blood volume-to-body weight ratio due to their larger extracellular fluid compartment.

**Why the Correct Answer is Right**
The blood volume in preterm neonates is approximately 70-80 mL/kg, which is higher than in term neonates (60-70 mL/kg) and adults (70-80 mL/kg). This higher blood volume-to-body weight ratio is due to the increased extracellular fluid compartment in preterm neonates. The blood volume is distributed between the plasma and the red blood cells, with the plasma volume being approximately 40-50% of the total blood volume in neonates.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not provide a specific value for the blood volume in preterm neonates.
**Option B:** This option is incorrect because the blood volume in preterm neonates is higher than in term neonates, not lower.
**Option C:** This option is incorrect because it does not accurately represent the blood volume-to-body weight ratio in preterm neonates.

**Clinical Pearl / High-Yield Fact**
Preterm neonates have a higher blood volume-to-body weight ratio due to their larger extracellular fluid compartment, which can lead to fluid overload and complications if not managed carefully.

**Correct Answer:** C.