Which of the following is a Ground-Based EW asset?

Ground-Based Electronic Warfare (EW) assets are systems designed to disrupt, deny, degrade, or deceive enemy electronic systems and communications from a stationary or ground-based position. In the context of electronic warfare, PAPERSPOCK refers to a ground-based system capable of electronic attack. It often operates to provide support in target identification, threat warning, and surveillance capabilities while being stationed on the ground.

In contrast, the F-35, AH-1, and KC-130 are primarily airborne platforms. The F-35 is a stealth multirole fighter with advanced avionics and EW capabilities but is classified as an air asset. The AH-1 is a type of attack helicopter that can also perform some electronic warfare functions, but it operates from the air. The KC-130 serves as a variant of the C-130 Hercules, primarily functioning as a refueling tanker and airborne support, not specifically as a ground-based electronic warfare system.

PAPERSPOCK's role as a dedicated ground-based electronic warfare asset is crucial in the overall context of EW operations, making it the correct choice in this scenario.