Following are the semiconductor materials having certain values of recombination co-efficient.(a) GaP(b) Si(c) InAs(d) GaAsThe correct sequence in ascending order of their values are:

• A. (b), (a), (c), (d)
• B. (d), (b), (a), (c)
• C. (a), (b), (c), (d)
• D. (c), (b), (a), (d)