The correct answer is D. The lawyer gave him the details of his uncle’s will.
A. The lawyer gives him the details of his uncle’s will. This is incorrect because it is in the present tense, while the sentence is in the past tense.
B. The lawyer has to give him the details of his uncle’s will. This is incorrect because it implies that the lawyer is obligated to give the details of the will, while the sentence does not state this.
C. The lawyer will be giving him the details of his uncle’s will. This is incorrect because it is in the future tense, while the sentence is in the past tense.
D. The lawyer gave him the details of his uncle’s will. This is the correct answer because it is in the past tense, which matches the tense of the sentence. It also accurately reflects the fact that the lawyer gave the details of the will to the person.