32 correct, 3 incorrect out of a possible 35. (91%)
To be fair, the one's you got incorrect could have easily been misconstrued since at least two meanings were very similar. For instance, you got 1, 10, and 12 incorrect.
1. You selected (A) locked, to be most synonymous with "secure," however, the site lists (B) 'safe' as the more appropriate answer. My answer was the same as yours. I think the word 'safe' here is a bit cryptic because one might automatically associate it with a physical safe, such as a vault.
12. I think you might have made a mistake on this one because you commented on "annoying" but as if you didn't select it. You ended up putting (c) annoying as the most similar to "obvious" when I think you might have meant (a) 'apparent.'
14. This one I have a hard time understanding the answer. I don't like the options here. The word we're looking for was 'unconscionable,' and it lists the answer as, (c) 'excessive.' But according to Dictionary.com, 'unscrupulous' is the first and most prominent definition, which I think we all associate with the word, unconscionable.' Listed third is excessive. I had no idea that excessive and unconscionable were analogous.