El pupitre in Spanish means desk. As you can see by the article 'el,' the noun pupitre is masculine in Spanish. This means that if you want to make a plural form of that article, it would be los for masculine gender, or las for feminine gender - but here we need masculine. Also, in Spanish, when you want to create a plural form of a word, you simply as the suffix -s at the end. So pupitre becomes pupitres in plural. Thus, the correct answer is los pupitres.
okay so look, spanish isn't really that important but it would help you to learn it a bit. Math it's important you need to get that to At least a D to pass the grade
