The problem asks to find which expression is equivalent to $4(3n - 5)$.

To solve this, we need to distribute the 4 across the terms inside the parentheses:

$4(3n - 5) = 4 \cdot 3n - 4 \cdot 5$

Simplifying:

$4(3n - 5) = 12n - 20$

So, the correct expression is $12n - 20$, which matches the second option.

Would you like more details on this, or do you have any questions?

Here are five related questions to expand on this:

1. How would the expression change if it were $5(3n - 4)$?
2. What is the general rule for distributing a number across a binomial?
3. How would you factor the expression $12n - 20$?
4. What happens when the binomial is $3n + 5$ instead of $3n - 5$?
5. How do you handle distribution with variables and constants?

Tip: Always remember to apply the distributive property to each term inside the parentheses, including both variables and constants!