According to the ainslie-rachlin model of self-control, the value of a reward a. decreases more sharply as it becomes more imminent b. increases more sharply as it becomes more imminent c. increases less sharply as it becomes more imminent d. decreases less sharply as it becomes more imminent

The correct answer is option b.

Explanation:

On the basis of the self-control model given by Ainslie-Rachlin, on certain occasions, there is a change in preference when the time for waiting for bigger reward increases and a smaller reward is offered in brief time duration. This model presumes the value of the reward to be a hyperbolic function of the delay.  

The value of the reward appears to increase more sharply when the delay time diminishes and the reward is about to be attained. For example, a child having a birthday party after three weeks and is asked to opt between the chocolate bar present to it at the moment and the birthday party.  

Then in the given case, the child will opt for the chocolate bar over the party as three weeks is a long time duration, and thus, the value of the reward is smaller in comparison to the bar of chocolate that can be achieved at the instant moment.  

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."