With reference to "PraVaHa" software developed by ISRO, which of the following statements is/are correct?1.It is a path-breaking feat by Vikram Sarabhai Space Centre.2.Initial aerodynamic design of space vehicles requires evaluation of large number of configurations.Select the correct answer from the codes given below:

1. A

   Only 2

   Option (a) states that only statement 2 is correct, ignoring the fact that statement 1 is also factually correct regarding ISRO's software development.

2. B

   Neither 1 nor 2

   Option (b) claims that neither statement 1 nor statement 2 is correct, which contradicts the official release confirming both statements are valid.

3. C

   Only 1

   Option (c) asserts that only statement 1 is correct, failing to recognize that statement 2 accurately describes the functional requirement of evaluating configurations for space vehicles.

4. D

   Both 1 and 2

   is (d) because both statements provided regarding the 'PraVaHa' software developed by the Vikram Sarabhai Space Centre and its application in evaluating a large number of configurations for the initial aerodynamic design of space vehicles are completely correct.

Summary. Official key is (d) both statements are correct. PraVaHa stands for Parallel Flow Facility, a CFD software developed by VSSC. It helps in evaluating large numbers of configurations during initial aerodynamic design. Both given statements accurately reflect its origin and purpose. Therefore, option (d) is the right choice.