comma before and?

Comma Before “With” ~ Rules, Examples & Practice Sheet

Does the Comma Go Before or After Quotation Marks?

Comma Rules Everyone Should Know

When Do You Use A Comma Before Or After But? – by Derek Haines…

The comma before and is optional. So, in question 39 both option B and C should be correct, right? I am confused. May 8, 2021 USA : r/Sat

Comma Before 'And

An Easy Guide to Using a Comma Before And – INK Blog

The Oxford Comma: usage in Australia

The Most Important Rules for Using Commas Without Looking Dumb