C. The correct sentence would be 'It was very embarrassing for me to admit that I didn't know how to tie my shoes'.
A beneficial human advancement is the insertion of a foreign gene into the DNA and being able to alter it, which can lead to both insect and disease-resistent crops which would lead to a higher yield of crops. This can be seen as the care of many genetic disorders. However, it is widely criticized due to ethical concerns and the capability to produce designer babies.
"mp" in music stands for "mezzo piano." Mezzo means medium and piano means soft, so therefore, the musician should play at a slightly reduced volume.
When writing a claim you need to take a stance on a particular issue. In this case the issue is whether or not "standardized tests are the proper measuring sticks for student performance." This stance should be the first part of your claim. Then follow it up with "because..." and your three reasons.
For example, Standardized tests are a proper measuring stick for student performance because they can test a student's knowledge on a wide range of subjects, they are the same for everyone, and they are an accurate indicator of how well a student will do in their future studies especially for fields like medicine and law.