What term refers to a legal claim challenging the validity of a last will and testament on grounds that it reflects influence by another person?

• A. Preamble
• B. Undue Influence
• C. Suspicious Circumstances
• D. Codicil

Answer: (B)

The concept being tested is undue influence in probate—the idea that a will can be challenged if another person’s influence deprived the testator of free will and shaped the testamentary provisions. Undue influence is the formal term used to contest a last will on the grounds that someone exerted improper pressure or control, causing the testator to act contrary to their true wishes.

This is the best answer because it directly identifies the recognized legal basis for challenging a will based on another person’s influence, rather than merely flagging concerns or describing unrelated concepts. The other options don’t fit: a preamble is only introductory language in a document; suspicious circumstances refers to red flags rather than a formal cause of action; a codicil is a separate document that amends a will.