which personal protective equipment (ppe) is recommended to be worn at all times when in direct contact with…

Brief Explanations:

When in direct contact with cattle, they can kick, head - butt, or have substances like saliva, dirt, or infectious agents that can pose a risk to the eyes. Non - slip, steel - toed boots are mainly for foot protection against being stepped on, hearing protection is not necessary just for direct contact as cattle are not extremely loud in normal interaction, and gloves are important but not as crucial as eye protection which guards against a wide range of potential hazards.

Answer:

D. Eye protection