How is the EF computed? A. ES + Activity time B. LF minusActivity time C. Min{LS of all immediate following activities} D. Max{EF of all immediate predecessors}

The answer is "Option A".

Explanation:

To signify that the properties must be mapped in a calculated column is always used Entity Framework. It is a Core Fluent API, that is used in the SQL procedure, and the term ES stands for "Early Start", in which it is an approximate time to start any exercise. It is also known as an activity, that will only start with the near then ends, and all past track practices have begun early, and certain options were wrong, that can be defined as follows:

In option B, It requires unit time 0, that's why it is wrong. Option C and Option D both are wrong because, in LF, it requires unit time, that is equal to 0 so, it can't be min or max.