Identify the Style Rule for Applying a Text Shadow with a Horizontal

Identify the style rule for applying a text shadow with a horizontal position of 0.2em, a vertical position of 0.1em, and a dark gray color to an h1 element.

A) h1 { text-shadow: #292933;
}
B) h1 { text-shadow: 0.2em 0.1em #292933;
}
C) h1 { text-shadow(h,v) : 0.2em 0.1em #292933;
}
D) h1 { h:0.2em v:0.1em #292933;
}