Missing "&" and commas in in-text citations in Rmarkdown

Question

My pdf output does not show APA in-text citation properly.

This is my YAML

---
title: "A fancy project"
author: "A reliable human being"
output:
  pdf_document:
    latex_engine: lualatex  
    citation_package: biblatex         
    keep_tex: yes
header-includes:
  - \usepackage{arabluatex}
  - \usepackage{fontspec}
  - \newfontfamily\arabicfont[Script=Arabic]{Lateef}
date: "2022-09-16"
bibliography: references.bib
csl: apa.csl
biblatexoptions:
  - citestyle = authoryear
  - bibstyle = authoryear
---

``{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
``

# Rmarkdown

Lorem ipsum dolor sit amet [@al2020الخصائص] consectetur.


# Reference

reference.bib

@article{al2020الخصائص,
  title={\txarb{الخصائص السيكو مترية للصورة العربية للإصدار الثاني من قائمة الخمسة الكبار}},
  author={Al-Ansari, Bader M and Alali, Talal B},
  journal={BAU Journal-Society, Culture and Human Behavior},
  volume={1},
  number={2},
  pages={3},
  year={2020}
}

Note that the "&" character is not used and commas are missing. Instead of

(Al-Ansari and Alali 2020)

it should be

(Al-Ansari & Alali, 2020)

The problem persists in the references as well where "&" should be used.

Answer 1

Set biblatex style option as apa, and you do not have to specify csl: apa.

---
title: "A fancy project"
author: "A reliable human being"
output:
  pdf_document:
    latex_engine: lualatex  
    citation_package: biblatex         
    keep_tex: yes
header-includes:
  - \usepackage{arabluatex}
  - \usepackage{fontspec}
  - \newfontfamily\arabicfont[Script=Arabic]{Lateef}
date: "2022-09-16"
bibliography: references.bib
biblatexoptions:
  - style = apa
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

# Rmarkdown

Lorem ipsum dolor sit amet [@al2020الخصائص] consectetur.


# Reference

---

---