CAN SOMEONE PLEASE HELP ME WITH THIS I REALLY NEED HELP

B

Explanation:

There's a three in front of the CH3COOH. But let's figure it out without that 3.

1 mol of CH3COOH has 3 H from CH3 and 1 hydrogen at the end. In all 4 hydrogens.

Now put the 3 in front 3CH3COOH multiplies everything by 3. So you had 4 before and with the 3 in front you must have 12.

Try it. Draw it out.

CH3COOH     has 4

CH3COOH     has 4

CH3COOH     has 4

Total                      12

That's B

a) the particles of the chair are strongly held together.