What is the minimum code coverage required before deploying Apex code to a production org?

The minimum code coverage required before deploying Apex code to a production org is indeed set at 75%. This requirement ensures that a significant portion of the code is tested, which contributes to the reliability and stability of the application in the production environment. Code coverage is measured by how many lines of code are executed during tests in relation to the total lines of code. A threshold of 75% encourages developers to write comprehensive and effective test cases that not only cover the main functionalities but also handle edge cases, thereby reducing the risk of bugs after deployment.

Meeting this minimum standard helps reassure stakeholders that the code has undergone sufficient testing, which can lead to improved confidence in the deployment process and the overall quality of the application.

Other options provided do not meet the regulatory standard set by Salesforce for code coverage, which is why they are not suitable answers in this context.