23. (+5) Beta testing is a form of a. Black box testing b. Glass box testing + 24. (+5) Designingtest data to ensure that each instruction is executed at least once refers to +' a. Black box testing b. Glass box testing+ 25. (+5) Building software from previously constructed components is primarily a a. Bottom-up activity b. Top-down activity 26. (+5) Dividing a module into smaller modules to obtain greater cohesion is a a. Bottom-up activity b. Top-down activity 27. (+5) Designing a dataflow diagram by successively adding more specificity is a a. Bottom-up activity b. Top-down activity