What should the AEM forms architect do to solve this problem?

An architect is troubleshooting a design that fails to meet the required acceptance criteria. The design must handle 20.000 concurrent users.

When the system is rolled out the solution can only handle 10.000 concurrent users. The architect determines that most requests are standard web page views. The average page size is 900KB and consists mostly of text and images. The environment consists of two dispatchers, two publishers, and one author. Most users reach this page from Google and report slow performance times.

What should the AEM forms architect do to solve this problem?
A . Add one more publisher
B . Enable caching on dispatchers.
C . Add two more authors.
D . Enable KR clustering.

Answer: B