Define each of the following terms:Target payout ratio; optimal dividend policy

Define each of the following terms:
a. Target payout ratio; optimal dividend policy
b. Dividend irrelevance theory; bird-in-the-hand theory
c. Information content, or signaling, hypothesis; clientele effect; signal; clienteles
d. Residual dividend model
e. Low-regular-dividend-plus-extras policy
f. Declaration date; holder-of-record date; ex-dividend date; payment date
g. Dividend reinvestment plan (DRIP)
h. Stock split; stock dividend
i. Stock repurchase