Hi<br/><br/>What is your preference?<br/><br/>(Formal letter)<br/><br/>Dear <b>a</b>ll vs Dear <b>A</b>ll<br/>Dear <b>P</b>arents vs Dear<b> p</b>arents (a school principal writing a letter to parents)<br/>Dear <b>G</b>uardians vs Dear <b>g</b>uardians<br/><br/>Thanks,<br/><br/>Tom