What is the highest memory measurement listed?

The highest memory measurement among the choices provided is the Yotta Byte. This unit represents an extremely large quantity of data, equivalent to 10^24 bytes or one septillion bytes.

To offer some context about the other options: a Peta Byte is significantly smaller, representing 10^15 bytes. A Bronto Byte does not have an official definition within the International System of Units (SI) and is often used informally in discussions about data size but is not formally recognized. The term "Geop Byte" is also not a standard measurement in the field of data storage and computing.

Therefore, the use of Yotta Byte as the correct answer highlights the understanding of the various data measurement units and their hierarchy, illustrating that it is the largest recognized unit, surpassing the others in magnitude.