lunarpower wrote:(d) vs (e):
* "have a disinclination to recognize" is wordy/unidiomatic, and is definitely inferior to "are disinclined to recognize".

* if you're going to use "while" with an adjective phrase (while willing to...), then that adjective phrase should precede the main verb.
i.e., many people, while willing to... , are disinclined to...

* there's also a slight change in meaning.
"recognize that their ... skills are weak" just means that the people should know that they have weak skills.
"recognize the weakness..." means that they should actually be able to point out the specific weakness.

(c):

two fatal errors of meaning.

first, the sentence just says that the people are "weak to a degree" -- i.e., it doesn't actually specify that the people are actually weak at analytical skills.
taken literally, this sentence says that the analytical skills make people unwilling to admit that they are weak (in general, not just at analytical skills) -- this is not the intended meaning of the sentence.

second, the sentence, if taken literally (as it must be), says that analytical skills themselves bring out this disinclination.
therefore, if we interpret this choice literally, it only applies to people who actually have analytical skills (since the analytical skills themselves bring out this disinclination -- so the disinclination couldn't appear in people who don't have the skills!).
this doesn't make sense, since the sentence is supposed to be talking about people who don't have very good analytical skills.