Give the systematic name for cis-isomer [Pt(P(CH₃)₃)₂Cl₂].
a) Dichloridobis(trimethylphosphine)platinum(II)
b) Chloridobis(trimethylphosphine)platinum(II)
c) Di-µ-chlorido-bis(trimethylphosphine)diplatinum(II)
d) Bis(trimethylphosphine)dichloridoplatinum(II)