Read the excerpt from The Dark Game. The first thing about the Zimmermann telegram that two Room 40 code breakers Reverend William Montgomery and Nigel de Grey,noticed was its length more than a thousand groups. Although the length itself was not suspicious, it was out of the ordinary. Then de Grey noticed the top group of numbers in the message, 13042, a variation of 13040, indicated a German diplomatic code. Since Room 40 had a copy of the 13040 codebook, they began using it to decipher the message. Which details in the text indicate a chronological structure? Select 2 options. The first thing Although Then Since

## Step 1<br />The problem asks us to identify two words or phrases in the given text that indicate a chronological structure. A chronological structure is a sequence of events or steps in time.<br /><br />## Step 2<br />The phrase "The first thing" is a clear indicator of a chronological structure. It signifies the beginning of a sequence of events or steps.<br /><br />## Step 3<br />The word "Then" is another indicator of a chronological structure. It is used to denote the next step or event in a sequence.<br /><br />## Step 4<br />The word "Although" is not an indicator of a chronological structure. It is used to introduce a contrast or contradiction, not a sequence of events.<br /><br />## Step 5<br />The word "Since" is not an indicator of a chronological structure. It is used to indicate a cause or reason, not a sequence of events.