Option C , Tim takes advantage of his grandmother's illness and persuades her to sign a will leaving all her property to him.
Explanation:
A individual who demonstrates excessive control may always be someone who has a special connection with the testator who has had the ability to render the testator vulnerable who affected by terms of danger, difficulty, manipulation.
Undue interference occurs mainly in areas of probate, trust and properties, power of attorney and custody.
Indecent influence is not usually a crime in itself, but it can be a means of committing a crime, including exploitation, fraud, domestic abuse and sexual assault.