Editor's note: The following are questions received from viewers of "Mad Money," seen every day at 6 p.m. EST on CNBC.

With Citigroup (C) - Get Report and JP Morgan (JPM) - Get Report ready to expand, what regions do you think they'll look to for acquisitions?-- John from Florida

Jim Cramer

: The expansion strategies of these individual companies not withstanding, I believe that the most attractive banking regions remain in coastal regions and other metropolitan areas where local business and real estate activity is growing.

One of your investment rules (from the book, the book!) is that folks should sell companies that have accounting problems. Given the recent Securities Exchange Commission inquiry into the company's option grants, should I still hold onto UnitedHealth Group (UNH) - Get Report?-- Andy from Utah

Jim Cramer

: First of all, this is a stock I own in my charitable trust

Action Alerts PLUS.

In my opinion, the recent sell off in UNH is more a function of a harsh rotation out of the healthcare sector than it is a reflection of any material problems at the company. With that in mind, I believe the stock can eventually trade back up toward $60.

Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by

clicking here

.