Answer: c. They involve need fulfillment.
Explanation: When people are in an intimate relationship each one has their own need especially physical needs that they need to be fulfilled and usual that is one of the reason they come together to date .
Sometimes it is not only physical needs but also emotional needs where people get intimate one person may get emotional uplifted and his or her emotional need get fulfilled .
Touching , hugging and other intimate action will fulfill both partners need in an intimate relationship otherwise if those needs are not met people always move from one intimate relationship to another.
