Options is not working for me

I'm trying to create a command that has options, but discord does not want to offer to fill them.

const { SlashCommandBuilder } = require('@discordjs/builders');

module.exports = {
  data: new SlashCommandBuilder()
    .setName('echo')
    .setDescription('Replies with your input!')
    .addStringOption(option =>
      option.setName('input')
        .setDescription('The input to echo back')
        .setRequired(true)
    ),
    async execute(interaction) {
      // Always null
      const answer = interaction.options.getString('echo')
      return interaction.reply({content: `Your input: ${answer}`, ephemeral: true})
    }
}

const { SlashCommandBuilder } = require('@discordjs/builders');

module.exports = {
  data: new SlashCommandBuilder()
    .setName('echo')
    .setDescription('Replies with your input!')
    .addStringOption(option =>
      option.setName('input')
        .setDescription('The input to echo back')
        .setRequired(true)
    ),
    async execute(interaction) {
      // Always null
      const answer = interaction.options.getString('echo')
      return interaction.reply({content: `Your input: ${answer}`, ephemeral: true})
    }
}