Over its sixty-year lifetime, the B-52’s avionics, flight hardware, and weapons systems have been upgraded. In 2006, the fleet received a “mid-life” upgrade to its avionics, adding modern processors and navigation systems. In 2014, the Air Force gave the BUFFS their first new communications system since the 1960s, including full-color LCDs to replace the old cathode ray tube screens. <span>On the weapons front, the airplanes are due to receive weapons-bay upgrades, enabling them to hold more smart bombs, and radar enhancements, potentially including the Active Electronically Scanned Array Systems technology. Used by fighter jets like the F-22 Raptor, the digital radar system is vastly more precise and offers higher resolution than conventional radar dishes. </span>
A is the correct answer, because it is grammatically correct and the noun/verb agrees.
Answer:
Explanation:
“A personal essay is a broad essay that often incorporates a variety of writing styles. Most personal essay assignments ask writers to write about an important person, event or time period in their life. The goal is to narrate this event or situation in a way that the reader can fully experience and understand.”