Based on the information given regarding the deductions, it should be noted that the amount that'll be listed in schedule A will be $50000.
Schedule A simply means the tax form that's used by the taxpayers who choose to itemize their deductible expenses.
In this case, the amount that will be listed in schedule A will be:
= Charitable contribution + Mortgage interest
= $30000 + $20000
= $50,000
In conclusion, the correct option is $50000.
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