A alternativa que preenche corretamente a lacuna I é 
In the last sentence of the second paragraph Thus, someone could send spoofed e-mail that appears to be from you with a message that you didnt write. the word thus introduces a 
In reference to the text, decide whether the following statements are right (C) or wrong (E).
The hierarchical structure of the diplomatic services in the 21st century is remarkably different from that prevalent in the previous centuries.
In reference to the text, decide whether the following statements are right (C) or wrong (E).
In the first paragraph, the author presents the main ideas he collected from Most of the recent scholarly works (l.1) on which his argument is built along the text.
In reference to the text, decide whether the following statements are right (C) or wrong (E).
The text presents an opposition between club diplomacy and network diplomacy, which are different and irreconcilable ways of settling international conflicts.
In reference to the text, decide whether the following statements are right (C) or wrong (E).
Discussions about inclusiveness and diversity in diplomatic circles have led to the expansion of the power of some countries.
In relation to the content and the vocabulary of the text, decide whether the following statements are right (C) or wrong (E).
From the third paragraph, it is correct to infer that the more complex the diplomatic scenario, the more necessary the presence of leaders is.
In relation to the content and the vocabulary of the text, decide whether the following statements are right (C) or wrong (E).
As far as textual unity is concerned, Yet provides a transition from the first to the second paragraphs, and establishes a contrast between the ideas in each of them.
In relation to the content and the vocabulary of the text, decide whether the following statements are right (C) or wrong (E).
The expressions two level games (l.7) and double-edged diplomacy (l.8) refer to a kind of diplomacy characterized by the presence of two types of actors: political leaders and technical diplomats.
In relation to the content and the vocabulary of the text, decide whether the following statements are right (C) or wrong (E).
The idea expressed by the fragment diversity of principals, agents, and intermediaries (l. 21 and 22) stands in sharp contrast to the one introduced by horizontal breadth with an open-ended nature (l. 24 and 25).