Magic Marker, one of the earliest widely used felt-tip permanent marker pens, was invented by which individual entrepreneur and inventor?

Introduction / Context:
Questions about everyday objects such as pens, markers and household tools are very common in general knowledge and competitive exams. The Magic Marker was one of the first popular felt tip permanent markers and became a standard writing and labeling tool in homes, offices and factories. This question tests whether you can correctly recall the name of the person who invented the Magic Marker and link that name to the object you see so often in daily life.

Given Data / Assumptions:

• The product mentioned is the Magic Marker, an early felt tip permanent marker pen.
• The question asks for the individual who invented or created this product.
• The options list four different people from varied fields.
• Only one of these options is historically connected with the creation of the Magic Marker.

Concept / Approach:
To answer this question, you need to match the correct inventor to the specific product. Adolphe Sax is known for the saxophone, Albert Bruce Sabin for an oral polio vaccine and Hyman George Rickover for his role in developing nuclear powered submarines. The Magic Marker is instead associated with Sidney Rosenthal, an American entrepreneur who combined a bottle of ink and a felt tip to create a marker that could write on many surfaces. Recognising each person main field helps you quickly eliminate wrong options and reach the correct answer.

Step-by-Step Solution:
Step 1: Focus on the key phrase Magic Marker, an early felt tip permanent marker pen.Step 2: Recall that musical instruments, vaccines and nuclear submarines are unrelated to marker pens.Step 3: Match Adolphe Sax with the saxophone, not with stationery items.Step 4: Match Albert Bruce Sabin with vaccine development, not with office supplies.Step 5: Match Hyman George Rickover with the nuclear navy, not with writing tools.Step 6: Identify Sidney Rosenthal as the businessman and inventor known for the Magic Marker, and select his name as the correct answer.

Verification / Alternative check:
To verify your choice, you can remember simple associations: Sax for saxophone, Sabin for polio vaccine, Rickover for nuclear submarines and Rosenthal for Magic Marker and felt tip pens. Many invention lists and trivia books pair Sidney Rosenthal name with the Magic Marker. This pattern is consistent and rarely disputed in general knowledge sources, so choosing Sidney Rosenthal is reliable for exam purposes.

Why Other Options Are Wrong:
Adolphe Sax designed the saxophone, a woodwind musical instrument, and has no link to marker pens. Albert Bruce Sabin developed an oral polio vaccine and worked in medical research, not office stationery. Hyman George Rickover is remembered as the father of the nuclear navy, responsible for nuclear powered submarines, not for inventing writing instruments. Therefore, these three options cannot be correct for this particular question.

Common Pitfalls:
A common mistake is to pick a familiar name without checking the field of contribution. Some candidates may recognise Sabin or Rickover from other GK topics and choose them out of habit. Others may not consciously link Sax with musical instruments. The best way to avoid such errors is to build clear mental pairs between people and their famous creations, such as Rosenthal and Magic Marker, Sax and saxophone, Sabin and polio vaccine. Such mappings make invention questions much easier and faster to answer accurately.

Final Answer:
Magic Marker was invented by Sidney Rosenthal.