Eight years ago, SW purchased $1,000$ shares of Delta stock. On May $20$ of the current year, it sold these shares for $90$ per share. Required: In each case in which SW purchased $1,200$ Delta shares, compute its tax basis in the shares. b$.$ SW$\text{'}$s cost basis in the $1,000$ shares was$104$ per share. It purchased $1,200$ shares of Delta on$.$ May $1$ for $92$ per share. c$.$ SW$\text{'}$s cost basis in the $1,000$ shares was$104$ per share. It purchased $1,200$ shares of Delta on June $8$ for $92$ per share. d$.$ SW$\text{'}$s cost basis in the $1,000$ shares was$79$ per share. It purchased $1,200$ shares of Delta on June $8$ for $92$ per share. $[[,$Tax basis$],[$b$.,],[$c$.,]]$ d$.$