Step 1: Read the blank:
The blank asks about the past of the speaker's people. So the answer must describe what happened to them over time, in a negative way, because they were called neglected.
Step 2: Sort the options by tone:
Options 1 and 4 are positive: prosperity, development, education, advancement. They cannot describe a group that was shabbily treated for ages. Option 3 is negative, but it blames the group itself and not others.
Step 3: Match with the speech:
The speaker blames others. He says his people were exploited and pushed off their land by outsiders. Only option 2 says this.
Step 4: Confirm with the later part of the passage:
The passage goes on to say tribes were dispossessed of land and deprived of forests. This is a case of dispossession, which matches option 2.
Step 5: Choose the option:
Option 2 is the only one that fits the tone and the facts.
Final Answer:
The speaker describes continuous exploitation and dispossession. The answer is option 2.
\[ \boxed{\text{Option 2}} \]