Answer:
d. Layout of keys on a keyboard
Explanation:
The technical standard refers to the designing, performance, compatibility, extra services, of a product etc
Based on the specifications, the customer are either interest or not interest i.e totally depend on their choice
So as per the given situation, the high-technology industries attach with its reference shows the layout of keys on a keyboard as an example of a technical standard as it shows the designing of a keyboard with come under the product specifications
