Colculole the value of ebsing suck toun the following actroting to Weighted Aoerage method $1$st lanuary, $2023$: Cpening Bulance: $50$ unrs of R $4$

$1.$th fanuary $202$ t ald units $6$ R $450$

Issuer and lanuary, $2023\mathrm{.}30$ units

$18$th taniary$,240?150$ uriss

A$.805$

$($B $300$

c $156$

D$.$ ins