Which expense category impacted CAVA's margins most in 2023?

In 2023, CAVA's margins were most impacted by the Research and Development (R&D) Expenses, which totaled $148.92 million for the year ending on December 31, 2023. |code|Ticker|Name|Date|Selling, General, and Administrative Expenses|R&D Expenses|Operating Expenses|market_code| |---|---|---|---|---|---|---|---| |CAVA|CAVA.N|CAVA Group|2023 Q1|4.1883E7|||169| |CAVA|CAVA.N|CAVA Group|2023 Q2|3.403E7|||169| |CAVA|CAVA.N|CAVA Group|2023 Q3|3.6E7|||169| |CAVA|CAVA.N|CAVA Group|2023 Q4|3.7011E7|||169|