Refer to re code segment above.

When following best practices for writing Apex taggers, which two lots are wrong or cause for concern? Choose 2 answers

A company wants to create a dynamic survey that navigates users through a different series of questions based on their previous responses.
What is the recommended solution to meet this requirement?

Which interface needs to be implemented by a Lightning Component so that it may be displayed in modal dialog by clicking a button on a Lightning Record page?

Universal Containers (UC) wants to develop a customer community to help their customers log issues with their containers. The community needs to function for their German- and Spanish-speaking customers also. UC heard that it's easy to create an international community using Salesforce, and hired a developer to build out the site.
What should the developer use to ensure the site is multilingual?

A developer is debugging an Apex-based order creation process that has a requirement to have three savepoints,
SP1, SP2, and SP3 (created in order), before the final execution of the process.
During the final execution process, the developer has a routine to roll back to SP1 for a given condition. Once the condition is fixed, the code then calls a roll back to SP3 to continue with final execution. However, when the roll, back to SP3 is called, a runtime error occurs.
Why does the developer receive a runtime error?