Directions: Read the following sentences (A, B, C, and D) and determine which of these sentences is/are grammatically and contextually correct.

A. I couldn't barely make out any of the instructions, which were written in such small print that even with my glasses, it was so confusing and frustrating.
B. Oversight, transparency, and technology integration can enhance assessment credibility and mitigate fraudulence in the examination process.
C. Clutter conceals and leads to frustration, highlighting the value of orderliness for an aesthetically pleasing and organized life.
D. Online education compounds the existing issues in the education system, adding in the challenges faced by students and academia.