Lake
the name given to a body of fresh water that is completely surrounded by land.
The answer is salient.
To complete the sentence and the idea:
Heather obviously paid more attention to what was salient.
Quick information:
The synonym of salient is noticeable or important, and/or prominent.
Example: Making and giving more salient points was what heather paid more attention to.
That is very interesting. But it also comes from the human mind
This development of Phil Zimmermann is known as PGP or Pretty Good Privacy. This is a hybrid cryptosystem that is able to combine algorithms and has become the open source for encryption and authentication of email and file storage all around the web. It uses the idea cipher that contains 128-bit key block encryption algorithm with 64 bit-blocks for encoding messages