---
id: 67d423a85787341beaa57838
title: Task 24
challengeType: 19
dashedName: task-24
lang: en-US
---

<!-- (audio) Jessica: Yes, everyone must use multi-factor authentication, including QA. -->

# --instructions--

Listen to the audio and answer the question below.

# --questions--

## --text--

What does the word `must` highlight in this context?

## --answers--

It suggests that multi-factor authentication is optional.

### --feedback--

`Must` expresses obligation, meaning it is not optional.

---

It indicates that multi-factor authentication was used in the past.

### --feedback--

`Must` is used for present or future necessity, not past actions.

---

It shows that using multi-factor authentication is a requirement for everyone.

---

It shows that only QA needs multi-factor authentication.

### --feedback--

Jessica says `everyone`, which means all users, not just QA.

## --video-solution--

3

# --explanation--  

Jessica states that `everyone must use` multi-factor authentication, meaning it is a rule that applies to all users, including QA.

She used `must` to express a strong obligation. It does not indicate an optional action or something that happened in the past.

# --scene--

```json
{
  "setup": {
    "background": "company2-center.png",
    "characters": [
      {
        "character": "Jessica",
        "position": {
          "x": 50,
          "y": 15,
          "z": 1.2
        },
        "opacity": 0
      }
    ],
    "audio": {
      "filename": "B1_14-1.mp3",
      "startTime": 1,
      "startTimestamp": 28.66,
      "finishTimestamp": 32.84
    }
  },
  "commands": [
    {
      "character": "Jessica",
      "opacity": 1,
      "startTime": 0
    },
    {
      "character": "Jessica",
      "startTime": 1,
      "finishTime": 5.18,
      "dialogue": {
        "text": "Yes, everyone must use multi-factor authentication, including QA.",
        "align": "center"
      }
    },
    {
      "character": "Jessica",
      "opacity": 0,
      "startTime": 5.68
    }
  ]
}
```
