They have published all the details of the invention.

All the details of the invention have been published by them.
The publication of the details of invention was done by them.
All the details have been invented by the publishers.
All the inventions have been detailed by them.

The correct answer is: A. All the details of the invention have been published by them.

The other options are incorrect because:

  • B. The publication of the details of invention was done by them. is incorrect because it does not specify who published the details.
  • C. All the details have been invented by the publishers. is incorrect because it does not specify what was invented.
  • D. All the inventions have been detailed by them. is incorrect because it does not specify who invented the inventions.

The sentence “They have published all the details of the invention” means that the people referred to as “they” have made the details of the invention available to the public. This could be done by writing a paper about the invention, giving a presentation about it, or creating a website or online document that describes it.