The best remedy of the student’s problems related with learning is

Suggestion for hard work
Supervised study in library
Suggestion for private tuition
Diagnostic teaching

The correct answer is D. Diagnostic teaching.

Diagnostic teaching is a process of identifying the specific learning problems that a student is having and then providing instruction that is tailored to address those problems. This can be done through a variety of methods, such as one-on-one tutoring, small group instruction, or even whole class instruction. The goal of diagnostic teaching is to help students overcome their learning problems and achieve success in school.

Here is a brief explanation of each option:

  • A. Suggestion for hard work: This is not a specific remedy for learning problems. Hard work is important for all students, but it is not enough to overcome learning difficulties.
  • B. Supervised study in library: This can be a helpful way for students to get extra help with their studies, but it is not a specific remedy for learning problems.
  • C. Suggestion for private tuition: This can be a helpful way for students to get one-on-one attention from a tutor, but it is not a specific remedy for learning problems.
  • D. Diagnostic teaching: This is the only option that is specifically designed to address learning problems.