4. How can you remember the difference between "line" and "load"? - A) Line has the letter "o" for "out " and load has the letter "i" for "in." - B) Line has the letter "I" for "in ." and load has the letter "o" for "out." - C) Line and load both refer to the same thing. - D) Line refers to the ground, while load refers to the neutral.

## Step 1<br />The problem is asking us to identify the correct mnemonic to remember the difference between "line" and "load". Mnemonics are memory aids that help us remember information by associating it with something familiar.<br /><br />## Step 2<br />The correct mnemonic is "Line has the letter 'o' for 'out,' and load has the letter 'i' for 'in.'" This mnemonic helps us remember that "line" refers to something that is going out, while "load" refers to something that is coming in.<br /><br />## Step 3<br />The other options are incorrect because they either provide the wrong mnemonic or they incorrectly state that "line" and "load" refer to the same thing or refer to different electrical components.