Concept:
A lift (elevator) is a vertical transportation system used in buildings for movement of people and goods between floors.
Major components of a lift include:
• Machine room,
• Lift car,
• Counterweight,
• Guide rails,
• Buffers,
• Hoisting mechanism.
These components work together to ensure safe and efficient vertical transportation.
Step 1: Analyze each component listed in the question.
• A. Comb plate -- Comb plates are components of escalators, not lifts.
• B. Machine Room -- Houses lift machinery and control equipment. \checkmark
• C. Counter weight -- Balances the lift car to reduce motor load. \checkmark
• D. Car -- The compartment used for carrying passengers or goods. \checkmark
• E. Buffers -- Safety devices placed at the bottom of lift shafts to absorb impact. \checkmark
Step 2: Identify the correct combination.
The actual components of a lift are:
\[
B,\; C,\; D,\; \text{and}\; E
\]
Therefore, the correct answer is:
\[
{B,\; C,\; D,\; E}
\]