The correct answer should be the third one you listed. The "current drag" then is a device that is used in order to measure the sub-surface currents. This device and the measurements it provides are extremely important for the field of oceanography which studies the aspects of the oceans both the physical and the biological ones.
Southern Colonies- reason for settlement
The Southern Colonies were settled mainly for economic gain(commercial gain).
Answer:
William Penn
Explanation:
William Penn was very friendly towards the Natives, and said that settlers had to buy land from them. He wanted to have good relations with them.