Final Answer:
Allergy testing injections are given via ID route.
Therefore, correct option is b. ID
Step-by-step explanation:
Allergy testing injections are typically given via the intradermal (ID) route (b). Intradermal allergy testing involves injecting a small amount of allergen solution into the dermal layer of the skin. This allows for the observation of localized allergic reactions, such as redness or swelling, indicating the patient's sensitivity to specific allergens.
The intradermal route is chosen for allergy testing because it provides a controlled and easily observable environment for assessing the patient's immune response to different allergens. It is a more sensitive method compared to other routes, allowing for the detection of allergic sensitivities even at low concentrations.
Therefore, correct option is b. ID