In the late 1960s, this/these inventions transformed computer technology:

Light Amplification by Stimulated Emission of Radiation

Theodore Maiman was the man who perfected the laser in 1960. The laser is used across industries in a host of places including the medical field, the aerospace industry, in measurement devices and even to scan food.

Explanation:

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this

i think it is the first one hope this