Correct Answer  Option 4 : Presenting students with statements such as "Lal Bahadur Shastri was our greatest Prime Minister" to defend or refute
Critical Thinking Critical thinking and creative thinking are not antithetical but complementary to each other. Both aim at truth. One lays the road, the other follows suit. Let us clarify this concept with the help of scientific discovery. Some strategies to developed critical thinking in students
 to ask students to raise questions instead of requiring them to answer questions we pose,
 to ask students to observe the everyday world around them and raise questions about it,
 to ask them to identify suitable problems. where they can apply their knowledge,
 to adopt the discovery model of teaching wherever this is possible, offering successive clues to the answer,
 to orient them to lateral thinking
"Lal Bahadur Shastri was our greatest Prime Minister" to defend or refute is a teaching strategy which most likely to foster the development of critical thinking skills of students because through this assignment, the student can prove the statement, theory, or any argument.
Following are three strategies to foster creative thinking among the students. These are

Teaching for questioning It is a strategy to make the students question everything that will bring under scrutiny many things we take for granted. This involves observation of phenomena around us.

Discovery method of teaching This model consists of enabling the students to discover on their own. For example, we can give students with statements such as "Lal Bahadur Shastri was our greatest Prime Minister" to defend or refute their own by sheer demonstration and nonverbal suggestions.

Lateral thinking It is made of a set of specific techniques that promote creative problemsolving.
Hence, we can conclude that presenting students with statements such as "Lal Bahadur Shastri was our greatest Prime Minister" to defend or refute is a teaching strategy which most likely to foster the development of critical thinking skills of students.