Efficiency experts will attempt to improve the productivity of an offi

Efficiency experts will attempt to improve the productivity of an office by analyzing production procedures into discrete work tasks. They then study the organization of those tasks and advise managers on techniques to speed production, such as rescheduling of employee breaks or relocating various equipment such as the copying machines. I have found a way to accomplish increases in efficiency with much less to do. Office workers grow increasingly productive as the temperature drops, so long as it does not fall below 68°F. The passage leads most naturally to which of the following conclusions?

(A) Some efficiency gains will be shortterm only. -Nowhere in the argument anything related to "period of efficiency" is stated. Out
(B) To maintain peak efficiency, an office manager must occasionally restucture office tasks. -We can't conclude this from the argument
(C) Employees are most efficient when the temperature is at 68°F. -Correct. From the last line we know that productivity increases till the temperature reaches 68 degrees.
(D) The temperature-efficiency formula is applicable to all kinds of work. -Only office work as per the argument
(E) Office workers will be equally efficient at 67°F and 69°F. -Can't say

I cannot understand the pattern of answers in these conclusion questions on the forum. In some of the questions, the logic behind incorrect answers is mentioned as the language being "Too Strong". However, in this question, the correct answer has "very strong" language like 'Employees are MOST efficient when the temperature is at 68°F.'

Can someone please explain how to measure, if the language is strong or not?

You have to take each explanation with a grain of salt.
If the stem doesn't mention anything strongly only then you would assume language is 'Too strong'.


Lets' say - Stem talks about a phenomenon affecting a certain population of the world.
If an option says - Phenomenon affects all Asians or say all developed countries- that is what you can say 'Too strong' or generic.

In Given stem - it is clearly mentioned that employees become efficient increasingly as the temp drops to 68. Here 'increasingly' is very strong word used by author.
One needs to eliminate option with reference to given information and language.

Option C states that -Employees are most efficient when the temperature is at 68°F. There is no mention of what the most efficient temperature, the premise states that as long as the temperature is not below 68°F. So what about if we compare 68°F with 70°F? There is no information provided for that.