Who is generally given credit for the modern concept of the double stranded dna helix

Francis Harry Compton Crick was born June 8, 1916. His father, Harry, was manager for a factory producing shoes and boots. His mother, Annie, was a schoolteacher. Francis went to Northampton Grammar School, where he was introduced to basic physics and chemistry. At an early age, he attempted (unsuccessfully) to produce synthetic silk in the laboratory.

The answer would be d. pili