Which of the following guidelines is true for formatting in$-$text citations for multiple works by the same author?

Standard in$-$text citation is used to make the works that are published in different years resemble each other.

The source listed first includes an $\text{'}a\text{'}$ after the year.

While citing multiple works by the same author, exclude a lowercase letter immediately after the year.

The source listed second should be in italics.

Rank the sources in a descending order and in the reference section rank them in an ascending order.