For home service calls, the ideal soldering tool is what?
a. soldering gun.
b. soldering iron.
c. gas torch.
d. alcohol torch.

Soldering Iron

Explanation:

For home service calls, where more likely it's only required to join two pieces of metal and thus less heat is required, a soldering iron should be sufficient. In industrial settings where more heat is required a soldering gun might be more efficient.

a: social security and social programs