ERRADO
O Spark é escrito na linguagem Scala e executa em uma máquina virtual Java. Atualmente, suporta as seguintes linguagens para o desenvolvimento de aplicativos: Scala. Java.
https://www.infoq.com/br/articles/apache-spark-introduction/#:~:text=O%20Spark%20%C3%A9%20escrito%20na,Java
Which language is Apache Spark developed in?
Scala
Apache Spark is one of the most popular framework for big data analysis. Spark is written in Scala as it can be quite fast because it's statically typed and it compiles in a known way to the JVM. Though Spark has API's for Scala, Python, Java and R but the popularly used languages are the former two.
https://www.kdnuggets.com/2018/05/apache-spark-python-scala.html