New technology like machine guns in World War I helped lead to: O A. the system of trench warfare. O B. a quick victory for Britain and France. C. offensive tactics that favored infantry charges. O D. the complex system of alliances.

a

Explanation:

a. men

and during later times male slaves as well

the lachish letters were written by hoshaiah, a military officer stationed possibly in mareshah,   and sent to yaush, possibly the commanding officer at lachish.

the series of letters were written in carbon ink in ancient hebrew on clay ostraca, shortly before lachish fell to the babylonian army of king nebuchadnezzar in 588/6 bc during the reign of zedekiah, king of judah.