The word "dolorous" comes from the Latin "dolor," meaning pain or grief, and it describes something full of sorrow, mournful, or expressing great sadness. The question asks for the option closest to this meaning.
The best match is "Lachrymose," since both words describe a mournful, sorrow-filled state.
Let's summarize:
So the correct answer is "Lachrymose."
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure the same?