I would say (C) considering all of the others seem positive
Hope this was helpful!! :)
Explanation:
The most common and fastest way of measuring ocean depth uses sound. Ships using technology called sonar, which stands for sound navigation and ranging, can map the topography of the ocean floor. The device sends sound waves to the bottom of the ocean and measures how long it takes for an echo to return.
Changes in the gene pool are closely related to genetic mutations, which are a major part of evolution.
