These are questions about the passage below (from The Problem With Confidence by David Brooks).

[Q1] Why does the author suggest that【try to come up with a feeling for self-confidence 】is complicated?
A.Vanity is all too common.
B. Mental processes are inconsistent.

[Q2] In the context of the article,【slights】most likely means
A. dirty looks
B. criticisms
C. weaknesses

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When you【try to come up with a feeling for self-confidence】, you are trying to peer into a myriad of ever-changing mental systems, most of them below the level of awareness. Instead of coming up with a real thing, which can reliably be called self-confidence, you’re just conjuring an abstraction. In the very act of trying to think about self-confidence, your vanity is creating this ego that is unstable and ethereal, and is thus painfully fragile, defensive, boasting and sensitive to 【slights】.
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Thank you for reading till the end.
I'd really appreciate it if you could answer any of the two.