Quote:
Some gardening books published by Garden Path Press recommend tilling the soil and adding compost before starting a new garden on a site, but they do not explain the difference between hot and cold composting. Since any gardening book that recommends adding compost is flawed if it does not explain at least the basics of composting, some books published by Garden Path are flawed.
The missing link here is apparent.
The argument says that the book does not highlight the difference between hot and cold composting.
Thereafter saying this it jumps to conclude that
"Since any gardening book that recommends adding compost is flawed if it does not explain at least the basics of composting, some books published by Garden Path are flawed."This means that basics of composting should include explanation of hot and cold composting.This information is the missing link we are trying to find out.
We move on to answer choices now:-
The relevant are C and D which are in someway addressing the hot and cold composting theory.
Quote:
(C) an explanation of the basics of composting must include an explanation of the difference between hot and cold composting
Yes. This says that the basics
must include an explanation of the difference between hot and cold composting.This is what we are searching for.
Also if you negate this choice the argument falls apart.
an explanation of the basics of composting
must NOT include an explanation of the difference between hot and cold composting
Quote:
(D) everyone who understands the difference between hot and cold composting understands at least the basics of composting
We are not bothered about whether everyone understands the difference between hot and cold composting. We are only concerned about whether difference between hot and cold composting is included when referring to basics of composting.
Therefore C is our answer.