In the context of modular software design, which one of the following combinations is desirable?

In modular software design:

• Cohesion measures the degree to which the elements inside a single module belong together functionally. High cohesion is desirable because it means a module focuses on a single, well-defined task, making it easier to understand, maintain, and test.

• Coupling measures the degree of interdependence between software modules. Low coupling (or loose coupling) is desirable because changes in one module minimize ripple effects in other modules.

Thus, the most desirable combination is High cohesion and low coupling (Option B).