Step 1: Think about why the title fits
A cow gives milk. A poor farmer wants a milk animal that costs little to buy and feed. The goat does this job at lower cost.
Step 2: Test each option against that idea
Buffalo cost a lot, so option (1) fails. Sheep are not mainly kept for milk, so option (2) fails. Poultry do not give milk, so option (4) fails.
Step 3: Confirm with the passage
The passage says goats are the poor man's cow because of low cost, hardiness and quick breeding.
Step 4: Pick the answer
Goat is option (3). This is a standard fact in livestock and fodder topics, so it is worth remembering for the exam. Reading the passage first and then checking each option against it avoids careless mistakes.
Final Answer:
The animal is the goat, so the answer is option (3).
\[ \boxed{\text{Option (3)}} \]