Concept:
The Garo tribe is a prominent tribal community mainly found in:
\[
\text{Meghalaya and adjoining regions}
\]
The Garos are widely known for:
• Matrilineal social organization,
• Clan-based structure,
• Collective decision-making traditions.
Political systems in tribal societies may be:
• Democratic,
• Autocratic,
• Segmentary,
• Chiefdom based.
Step 1: Understanding the political organization of the Garos.
The Garo political system traditionally involves:
• Community participation,
• Village councils,
• Consensus-based decisions,
• Collective leadership.
These characteristics indicate:
\[
\boxed{\text{Democratic political functioning}}
\]
Step 2: Analyzing Autocratic lines.
Autocratic systems involve:
• Centralized authority,
• Rule by a single leader,
• Limited collective participation.
Traditional Garo political organization does not function in this manner.
Hence option B is incorrect.
Step 3: Analyzing Multi layered system.
Although tribal societies may contain multiple social levels, the recognized political characteristic of the Garos is primarily:
\[
\text{Democratic functioning}
\]
Thus option C is not the best answer.
Step 4: Analyzing None of the above.
Since democratic organization correctly describes the Garo political system:
\[
\boxed{\text{None of the above is incorrect}}
\]
Step 5: Final conclusion.
The political organization of Garo tribes runs on:
\[
\boxed{\text{Democratic lines}}
\]
Hence, the correct answer is:
\[
\boxed{\text{(A) Democratic lines}}
\]