The correct translation for the sentence given is:
Busco un lápiz
In this case, the only correct translation for I'm looking for a pencil is Busco un lápiz.
The other options have prepositions that are not necessary to use because ''lápiz'' (pencil) is an object, not a person, so you don't need to add anything else.
Check more information about Spanish grammar here brainly.com/question/5495832
Answer:
The correct answer would be A.
Explanation:
Hope this helps and have a great day! :)