diff --git a/src/en/clean-copy/02-Section I. The API Design/02.md b/src/en/clean-copy/02-Section I. The API Design/02.md
index f76ad10..39471e7 100644
--- a/src/en/clean-copy/02-Section I. The API Design/02.md	
+++ b/src/en/clean-copy/02-Section I. The API Design/02.md	
@@ -36,7 +36,7 @@ Since our book is dedicated not to software development per se, but to developin
 
 In other words, there must be a solid reason to split two software development domains: there are the operators which provide APIs, and there are the operators which develop services for end users. Their interests are somehow different to such an extent, that coupling these two roles in one entity is undesirable. We will talk about the motivation to specifically provide APIs in more detail in Section III.
 
-We should also note, that you should try making an API when and only when you wrote ‘because that's our area of expertise’ in question 2. Developing APIs is a sort of meta-engineering: you're writing some software to allow other companies to develop software to solve users' problems. You must possess expertise in both domains (APIs and user products) to design your API well.
+We should also note that you should try making an API when, and only when, your answer is "because that's our area of expertise" to question 3. Developing APIs is a sort of meta-engineering: you're writing some software to allow other companies to develop software to solve users' problems. You must possess expertise in both domains (APIs and user products) to design your API well.
 
 As for our speculative example, let us imagine that in the near future some tectonic shift happened within the coffee brewing market. Two distinct player groups took shape: some companies provide ‘hardware’, i.e. coffee machines; other companies have access to customer auditory. Something like the flights market looks like: there are air companies, which actually transport passengers; and there are trip planning services where users are choosing between trip variants the system generates for them. We're aggregating hardware access to allow app vendors for ordering freshly brewed coffee.