નીચે આપેલા સંયોજન માટે $IUPAC$ નામ લખો:

• A
  $2-(2-\text{Methylbuta}-1,3-\text{dienyl})\text{but}-3-\text{enoic acid}$
• B
  $3-\text{Methylhepta}-1,3,6-\text{triene}-1-\text{carboxylic acid}$
• C
  $2-\text{Ethenyl}-4-\text{methylhexa}-3,5-\text{dienoic acid}$
• D
  $5-\text{Carboxy}-3-\text{methylhepta}-1,3,6-\text{triene}$