Ktor Client: Responses

We need to make a POST request to hyperskill.org and output the 10th byte of the response body to the console (byte is an integer from 0 to 255).

Which code fragment correctly accomplishes this task?

1)

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    val response: HttpResponse = client.post("https://hyperskill.org/")
    val body: ByteArray = response.body()
    println(body[10])
    client.close()
}

2)

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    val response: HttpResponse = client.post("https://hyperskill.org/")
    val body: ByteArray = response.body()
    println(body[9])
    client.close()
}

3)

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    val response: HttpResponse = client.get("https://hyperskill.org/")
    val body: ByteArray = response.body().asList()
    println(body[9])
    client.close()
}

4)

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    val response: HttpResponse = client.post("https://hyperskill.org/")
    val body: ByteArray = response.body().asList()
    println(body[10])
    client.close()
}

5)

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    val response: HttpResponse = client.post("https://hyperskill.org/")
    val body: ByteArray = response.body().asList()
    println(body[9])
    client.close()
}