Which solution does not correctly fix the following run-on sentence?

they were expensive combs her heart had simply craved and yearned over them.

a. they were expensive combs, her heart had simply craved and yearned over them.
b. they were expensive combs, and her heart had simply craved and yearned over them.
c. they were expensive combs. her heart had simply craved and yearned over them.

I would contend that the solution that does NOT correctly fix the following run-on sentence is the A) They were expensive combs, her heart had simply craved and yearned over them.

Explanation: Just to elaborate a little on the answer, it can be added that "They were expensive combs her heart had simply craved and yearned over them" is an example of a fused sentence — two independent clauses run together without the proper separation (a coordinating conjunction or the appropriate punctuation mark). The solution presented in option A is actually another example of a run-on sentence, specifically a comma splice, since the two independent clauses have been joined just by a comma. However, the solutions B and C are correct, since a run-on sentence can be fixed by using a comma FOLLOWED BY a coordinating conjunction (B) or by separating the two clauses into sentences by means of a period (C).    

the answer is both an appeal to ethos and logos (if that's what your question options were)

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x