Select the correct statement.

Select the correct statement:


Select one:
a. In structured specification for writing requirements the freedom of the requirements writer is limited and requirements are written in a standard way.
b. In structured specification Requirements are written as natural language sentences supplemented by diagrams and tables.
c. Both are correct
d. No one is correct

5day BOD=0.68 ultimate BOD whereas 4day BOD =0.601 ultimate BOD

In 5 day BOD ,micro-organisms have more time to consume O2and hence dissolved oxygen demanded will be less after 5days whereas in 3day BOD micro-organisms have less time to consume O2 to decompose organic matter and after 3day dissolved oxygen demanded will be more to decompose organic matter.so BOD 5 is less than BOD 3 (compare dissolved oxygen demanded or required) thanks

In 5 day BOD ,micro-organisms have more time to consume O2and hence dissolved oxygen demanded will be less after 5days whereas in 3day BOD micro-organisms have less time to consume O2 to decompose organic matter and after 3day dissolved oxygen demanded will be more to decompose organic matter.so BOD 5 is less than BOD 3 (compare dissolved oxygen demanded or required) thanks

Correct answer is B, 5 day BOD greater than 4 day BOD