Pick the correctly punctuated form of the given sentence.
How do we solve this problem
How do we solve this problem!
How do we solve this problem?
How do we solve this problem.
How do we solve this? Problem.
(The sentence is a question and hence, should end with a question mark.)
ABX6=BBB. How do we solve this?
A plant may have different names in different regions or the country of world. How do botanists solve this problem?