Below is the diagram of a bacteriophage. In which one of the options are all four parts, A, B, C, and D, correct, respectively?

Explanation

A-Head, B-Sheath, C-Collar, D-Tail fibreThe head contains the genetic material of the bacteriophage, usually in the form of DNA or RNA, enclosed within a protein coat. It plays a vital role in protecting the genetic material and injecting it into the host cell during infection.The sheath is a contractile structure surrounding the tail tube that helps in injecting the phage DNA into the bacterial cell. When the phage attaches to the host, the sheath contracts to push the DNA through the bacterial membrane.The collar is a small structure that connects the head to the tail and helps in stabilizing the phage during attachment. It also assists in the transfer of genetic material from the head to the tail during infection.The tail fibres are long, thin structures that help the phage recognize and attach to specific receptor sites on the bacterial surface. They play a crucial role in determining the host range and initiating the infection process.