Explanation:

Let’s break it down:

- Option 3: Centrosome

This is the main microtubule-organising centre (MTOC) in most animal cells. It’s the anchor point for microtubules, which help with sensory reception, cell movement, and organizing cells during embryogenesis.

- Option 1: Plastids

These are found in plants and algae (like chloroplasts); they’re mainly about photosynthesis or storage, not microtubule organization.

- Option 2: Vacuoles

Vacuoles are basically storage sacs. They hold water, waste, or nutrients—but don’t organize microtubules.

- Option 4: Lysosomes

Think of these as the cell’s recycling centers. They break down waste, but have nothing to do with microtubules.

So, centrosome is absolutely the answer. You nailed it.