When jen is planning to upgrade to a monitor with a better resolution, what should she be looking for in the new monitor? machine cycles / second terabytes pixels / square inch gigahertz

As Jen is planning to upgrade her monitor with a better resolution, the most important thing she should be looking at in the monitor is pixels/ square inch.  

pixels / square inch

Explanation:

All other options are irrelevant to monitor. Machine cycles/second deals with the working of CPU, terabytes is a unit of memory that can correspond to the main memory of the computer and gigahertz is a unit of frequency that corresponds to the clock speed of the microprocessor.

Jen just wants a monitor with better resolution. Pixels play a very important role in determining the quality of the displayed content. The more pixels per square inch of the screen, the better is the quality.