Hi, please give 3 thesis statements on homework being optional

Which of these sentences would best express the main idea of a speech arguing that people should participate in a charity softball tournament? a) softball is a great way to get some much-needed exercise. eliminate b) the money raised by the tournament will local animal shelters. c) the tournament is a fun way to spend time with friends while a worthy cause. d) even if you don't have any softball experience, you can form a team and participate.

What is the definition of cache and in what circumstances would it be appropriate to use it

Which sentence is the most effective in stating the overall purpose of section 4, “confidentiality of user names and passwords? ”