When performing long division, what is the correct first step to take after you get a remainder and have no more digits to bring down in the dividend?

Add a zero to the end of the quotient.

Place a decimal point in the dividend and quotient, then add a zero to the dividend.

Write the remainder as a fraction next to the quotient.

Start the problem over with different numbers.

Divide 75 by 4. Which option correctly shows the answer with a remainder, as a mixed number, and as a decimal?

a: $18 \text{ R } 3$, b: $18\frac{3}{4}$, c: $18.75$

a: $18 \text{ R } 3$, b: $18\frac{3}{4}$, c: $18.34$

a: $19 \text{ R } 1$, b: $19\frac{1}{4}$, c: $19.25$

a: $18 \text{ R } 1$, b: $18\frac{1}{4}$, c: $18.25$