Question

1. the item pictured to the right is a

a. screwdriver
b. hex key / allen key
c. regular wrench
d. bolt
e. nut

Explanation:

The item has a threaded shaft and a head with a socket - like indentation, which are characteristics of a bolt. A screwdriver is a tool, a hex key is a tool for turning bolts/screws, a regular wrench is a tool, and a nut is a fastener that threads onto a bolt.

Answer:

d. bolt