Read the following context and choose the best option to answer the question.
Context: Rode to the Schaumburg library , a brief 11 miles away . Yeah , I got a lot of sun today . Methinks sun burn is likely , especially since I 'll be outside a lot tomorrow ( will wear sunblock then for sure ) .
Question: What 's a possible reason the writer thinks a sunburn is likely ?
Options: 
- Because the library was 11 miles away .
 - Because they will wear sunblock tomorrow .
 - Because they were out in the sun and without sunscreen .
 - Because they rode to the Schaumburg library .


Because they were out in the sun and without sunscreen .