This open source icon is named "answer best" and is licensed under the open source CC BY 4.0 license. This icon is light colored, meaning out the box, it needs a contrasting background color to make it stand out.
answer best Icon - Download for free – Iconduck
answer best Icon - Download for free – Iconduck
answer best Icon - Download for free – Iconduck
answer best Icon - Download for free – Iconduck