Which of the following tasks is a good candidate for a macro?

Explain any constraints in using the top-down versus bottom-up approach in duration estimating.

What will be an ideal response?

ExecutorService method ________ executes a Callable passed in as its argument. Method submit returns an object of type Future (of package java.util.concurrent) that represents the future result of the executing Callable.

a. submit b. execute c. future d. perform