What is the main difference between web-to-case and web-to-lead? (Choose two options)

Answer options:

A.Both are the same, no difference
B.Web to Case generates a case record and web to lead generates a lead record
C.The default limit for the web to case is 5000 cases per day and through the web to lead you can capture 500 leads
D.Web to case and web to lead both are customizable through the support setting

Correct Answer: B and C 
Web to case is used to generate a case record while web to lead is used to generate a lead record. The default limit for the web to case is 5000 cases per day while for web to lead it is 500 leads per day. 
Option A is incorrect because web to case and web to lead are different. They work the same way but they have differences. 
Option D is incorrect because web to lead is customizable through the lead object while web to case is customizable through the case object. 
References:

https://help.salesforce.com/articleView?id=setting_up_web-to-case.htm&type=5

Correct Answer: B and C 
Web to case is used to generate a case record while web to lead is used to generate a lead record. The default limit for the web to case is 5000 cases per day while for web to lead it is 500 leads per day. 
Option A is incorrect because web to case and web to lead are different. They work the same way but they have differences. 
Option D is incorrect because web to lead is customizable through the lead object while web to case is customizable through the case object. 
References:

https://www.salesforce.com/products/guide/lead-gen/web-to-lead/