Which sentence shows that both people own the car together? A. Have you seen lidia's and ben's hot new car? B. Have you seen lidia and ben's hot new car? C. Have you seen lidias and bens hot new car? D. Have you seen lidia and bens hot new car?

B. Have you seen Lidia and Ben's hot new car?

Explanation:

Possessive case is used to indicate possession. When we want to express that two or more animated objects own the same thing, then the possessive case is added to the last person in the list. As a consequence, only Ben - and not Lidia - receives the apostrophe and - s ('s) specifying possession.

The rest of the answer choices are incorrect because either the possessive case is applied to both people, or just the - s is added to one or two people.

The sentence that shows that both people own the car together is option B. Have you seen Lidia and Ben's hot new car?

Ín the case that there are many nouns, 's is added to the last noun.