Question

......... invented ball point pen.

• A. Biro Brothers
• B. Slavoljub Eduard Penkala
• C. Van Vechten Riesburg
• D. All
• E. None

Hint:

To answer questions on historical inventions, remember to verify the key figures behind those inventions. The Biro brothers are credited with the ballpoint pen's creation.

Answer 1

The Correct Option is A

Step 1: Understanding the history of the ballpoint pen.
The ballpoint pen was invented by the Biro brothers, Laszlo Biro and Georg Biro, in the 1930s. They created the modern ballpoint pen, which used a small rotating ball to dispense ink, making it more reliable than earlier fountain pens.
Step 2: Analyzing the options.
(A) Biro Brothers: Correct, the Biro brothers are credited with inventing the ballpoint pen.
(B) Slavoljub Eduard Penkala: Incorrect, Penkala invented the mechanical pencil, not the ballpoint pen.
(C) Van Vechten Riesburg: Incorrect, there is no known connection to the invention of the ballpoint pen.
(D) All: Incorrect, as the Biro brothers are the correct inventors.
(E) None: Incorrect, as the Biro brothers are the correct answer.
Step 3: Conclusion.
The correct answer is (A) Biro Brothers, as they invented the ballpoint pen.